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DTSTART;TZID=America/Los_Angeles:20251015T183000
DTEND;TZID=America/Los_Angeles:20251015T200000
DTSTAMP:20260413T081059
CREATED:20250908T001828Z
LAST-MODIFIED:20250929T211633Z
UID:10000301-1760553000-1760558400@northwesthort.org
SUMMARY:Dishing Dirt with Richie and Bess: Fall Gardening Made Easy
DESCRIPTION:Join horticultural experts Bess and Richie as they dig into the joys of autumn gardening. This lively webinar will highlight practical tips to keep your garden thriving through the season\, and also explore perennials and grasses that shine in the fall garden\, from vibrant foliage to late-season blooms. Review the essential chores that prepare your beds for winter while setting the stage for a flourishing spring\, and learn how to successfully overwinter some of your favorite tender plants. Whether you’re a seasoned gardener or just like getting your hands dirty\, you’ll come away inspired and ready to make the most of your fall garden. \nSpeakers’ Bios: \nBess Bronstein is an ISA certified arborist\, educator and horticultural consultant based on the Kitsap Peninsula in Kingston\, Washington. She has 35 years of experience in arboriculture\, landscape management and garden design. Bess was an instructor at the Edmonds College horticulture program for 28 years\, with a focus on courses in pruning and tree care\, plant identification\, plant pests and diagnosis\, and soils. \nRichie Steffen\, former president and board member of NHS\, is enthusiastic about (or more accurately\, obsessed with) plants. He is the executive director for the Elisabeth C. Miller Botanical Garden where he oversees the Garden\, its rare plant collections and its primary educational program\, Great Plant Picks. 
URL:https://northwesthort.org/event/dishing-dirt-with-richie-and-bess-fall-gardening-made-easy/
LOCATION:Live Webinar
CATEGORIES:Webinar Lecture
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/09/2025-10-15-Dishing-Dirt-with-Bess-and-Richie-Fall-Gardening-Made-Easy-Thumb.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250924T183000
DTEND;TZID=America/Los_Angeles:20250924T200000
DTSTAMP:20260413T081059
CREATED:20250818T222644Z
LAST-MODIFIED:20251006T211250Z
UID:10000295-1758738600-1758744000@northwesthort.org
SUMMARY:Gardening Under Mature Trees with Christina Pfeiffer
DESCRIPTION:A recording of this extremely popular and useful lecture is available for purchase and viewing through October 23\, 2025.\nPacific Northwest gardens often boast an enviable range of conifers and hardwoods\, but successfully planting underneath them can be challenging due their substantial root systems\, heavy water demands and expanding shade. In addition\, misunderstandings about mature trees’ roots can lead to the eventual death of these prized older trees\, while repeated efforts to cultivate grass and other plantings beneath them can become frustrating and costly. Drawing from decades of expertise\, Christina will share valuable lessons in how to successfully anticipate and avoid these complications. She will also cover some cost-effective techniques to improve the long-term success for all plants in these landscape situations. \nSpeaker’s Bio:  \nChristina Pfeiffer is a Seattle-based horticulture educator and ISA Certified Arborist who has enjoyed a long and interesting career in landscape horticulture. She holds degrees in horticulture from Michigan State and the University of Washington and brings practical experience and attention to current research to her presentations. Christina has met the challenges\, successes and failures of gardening under mature trees through her past role as a horticulturist at the Washington Park Arboretum\, as a consulting arborist and\, for over thirty years\, in her own garden.
URL:https://northwesthort.org/event/gardening-under-mature-trees-with-christina-pfeiffer/
LOCATION:Live Webinar
CATEGORIES:Live Webinar
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/08/2025-09-24-Gardening-under-Mature-Trees-with-Christina-Pfeiffer-Thumb.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250923T100000
DTEND;TZID=America/Los_Angeles:20250923T120000
DTSTAMP:20260413T081059
CREATED:20250812T023236Z
LAST-MODIFIED:20250821T184148Z
UID:10000293-1758621600-1758628800@northwesthort.org
SUMMARY:Fall Propagation Class with Janet Egger at Dunn Gardens (SOLD OUT)
DESCRIPTION:Plant propagation is an integral part of plant breeding as it requires learning how to make and grow seed and how to maintain the mother plants by division and cuttings. September is the ideal time to multiply your most desirable plants and to save some of your half-hardy perennials from a cold winter. Expert horticulturist Janet Egger will demonstrate how to select and root softwood cuttings of fuchsia\, cuphea\, roses and other garden favorites. She will also show how to collect\, card\, clean and package seeds; divide grasses and other perennials for planting out this fall; and how to layer shrubs to create new plants for planting out next spring. You will take home some of the plant cuttings and cleaned seeds that you worked with during the class. \nInstructor’s Bio: \nJanet Egger has been in horticulture since 1971 and has been a plant breeder since 1980. She holds a B.S. in botany and an M.S. in horticulture from UC Davis. She recently retired as head plant breeder for Terra Nova Nurseries in Canby\, Oregon. She volunteers at Dunn Gardens as a board member\, docent and database manager. \n \n \n 
URL:https://northwesthort.org/event/fall-propagation-class-with-janet-egger-at-dunn-gardens/
LOCATION:Dunn Gardens\, 13533 Northshire Rd. NW\, Seattle\, WA\, 98177
CATEGORIES:In-person Class
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/08/2025-09-23-Propagation-Class-with-Janet-Egger-Thumb-Soldout.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250918T100000
DTEND;TZID=America/Los_Angeles:20250918T120000
DTSTAMP:20260413T081059
CREATED:20250807T155102Z
LAST-MODIFIED:20250821T215401Z
UID:10000291-1758189600-1758196800@northwesthort.org
SUMMARY:Seattle Waterfront Tour with Richard Hartlage  (SOLD OUT)
DESCRIPTION:Join us for a walking tour of Seattle’s newest and boldest urban park\, led by Richard Hartlage of Land Morphology\, which provided planting design services for this expansive project. The park skims along Elliott Bay\, spanning 20 acres and 26 blocks\, and features 500 plant varieties and nearly 800 trees. Each planting zone tells a unique story rooted in local history and ecology and exemplifies how thoughtful planting design creates spaces that connect the community with nature\, enhance biodiversity and serve as models for sustainable urban development. Overlook Walk is populated with species native to Puget Sound’s coastal bluffs and provide valuable shade\, habitat and stormwater filtration. The Aquarium Rooftop’s native meadow landscape was designed with guidance from traditional ecological knowledge-keeper Valerie Segrest\, an enrolled member of the Muckleshoot Indian Tribe.   \nTour leader’s bio:  \nRichard Hartlage is the CEO and founding partner of the Seattle-based landscape architectural firm Land Morphology. His award-winning designs are emotive\, immersive spaces that incorporate sophisticated horticulture and historical knowledge to heighten the human experience of the natural world. Richard’s passion for horticulture\, cultivated while working in public gardens and estates and managing landscape architecture studios\, is applied to each design from the conceptual phase through development of maintenance protocol and beyond.   \nThe firm’s portfolio includes the Leach Botanical Garden in Portland\, the Herb and Vegetable Garden at the Brooklyn Botanical Garden\, Chihuly Garden and Glass\, and numerous private residential landscapes and commercial projects across eight states. Richard has contributed to six books on horticulture and landscape architecture\, including “The Authentic Garden: Naturalistic and Contemporary Planting design in Landscape Architecture.” He received the American Horticulture Society’s Great American Gardeners Award in 2018 and the Mrs. Oakleigh Thorne Medal from the Garden Club of America in 2025.  \n \n \n \nSeattle Waterfront Plan
URL:https://northwesthort.org/event/seattle-waterfront-tour-with-richard-hartlage-2/
LOCATION:Seattle Waterfront Park\, 1401 Alaskan Way\, Seattle\, WA\, 98101
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-06-26-Seattle-Waterfront-Tour-with-Richard-Hartlage-Thumb-1-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250917T183000
DTEND;TZID=America/Los_Angeles:20250917T200000
DTSTAMP:20260413T081059
CREATED:20250818T223211Z
LAST-MODIFIED:20250819T052002Z
UID:10000296-1758133800-1758139200@northwesthort.org
SUMMARY:Nearby Nature is Good for Us: Here’s the Science with Dr. Kathleen Wolf
DESCRIPTION:The science of nature and human health is remarkable – represented by thousands of studies that concern all people and all dimensions of health. Yet many are blind to the presence of nature\, thus are unaware of its benefits and the necessity for investment in expanded access. Dr. Wolf will share highlights of nature and health research\, then turn to why nature in everyday environments helps people thrive.  \nSpeaker’s bio:  \nKathleen (Kathy) Wolf\, Ph.D. is a research social scientist with the University of Washington and University of British Columbia. She developed and directed a multi-decade research program at UW to investigate the human response to outdoor spaces and trees in cities\, using the theory and methods of environmental psychology. Now semi-retired\, she is committed to science collaboration and outreach\, working with partners in nations across the planet. She was recently a keynote speaker at the 2nd International Conference on Forest Therapy at the University of British Columbia.  \n Additional resources:  \n http://depts.washington.edu/hhwb/  \n http://www.naturewithin.info/ 
URL:https://northwesthort.org/event/nearby-nature-is-good-for-us-heres-the-science/
LOCATION:Live Webinar
CATEGORIES:Live Webinar
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/08/2025-09-17-Nearby-Nature-is-Good-for-Us-Heres-the-Science-with-Kathleen-Wolf-Thumb.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250912T100000
DTEND;TZID=America/Los_Angeles:20250912T120000
DTSTAMP:20260413T081059
CREATED:20250901T221743Z
LAST-MODIFIED:20250905T221931Z
UID:10000299-1757671200-1757678400@northwesthort.org
SUMMARY:Expedia Campus Late Summer Tour With Jeff Daley (SOLD OUT)
DESCRIPTION:Expedia’s Ecological Horticulturalist/Arborist Jeff Daley will guide an exclusive tour of the Expedia Group Campus on the Seattle waterfront. This is a rare opportunity to experience an invigorating approach to corporate campus design that employs landscape illusions to blur the boundaries between public and private space. The 40-acre site features artful displays of grasses in their summer-to-fall prime\, along with majestic views of Puget Sound\, Mt. Rainier and downtown Seattle. Jeff will lead us into areas inside the campus usually accessible only to employees\, including a park amphitheater\, a cascading water feature\, roof gardens\, apiary\, vegetable garden and other landscape features informed by biophilic design\, sustainability and a rich sense of place. \nParking and entry details to the campus will be provided to registrants prior to the tour. \nGuide’s Bio: \nJeffrey Daley has been involved in horticulture on the Expedia campus for the past four years. Prior to that\, he was head gardener and arborist at Seattle Pacific University for 30 years. Jeff is a Washington State Certified Professional Horticulturist\, ISA Certified Arborist and WSU Master Gardener.  \nAdditional resources: \nhttps://www.seattletimes.com/pacific-nw-magazine/expedias-seattle-landscape-offers-employees-a-quick-trip-to-nature/ \nhttps://www.fastcompany.com/90796605/expedias-new-hq-is-an-ambitious-vision-for-the-future-of-corporate-campuses
URL:https://northwesthort.org/event/expedia-campus-late-summer-tour-with-jeff-daley/
LOCATION:Expedia Seattle Campus\, 1111 Expedia Group Way W\, Seattle\, WA\, 98119
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/09/2025-09-12-Expedia-Campus-Late-Summer-Tour-with-Jeff-Daley-Thumb-2-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250911T100000
DTEND;TZID=America/Los_Angeles:20250911T120000
DTSTAMP:20260413T081059
CREATED:20250812T023934Z
LAST-MODIFIED:20250829T153224Z
UID:10000292-1757584800-1757592000@northwesthort.org
SUMMARY:Garden Journaling: A Novel Approach with Lorene Edwards Forkner and Sue Goetz (SOLD OUT)
DESCRIPTION:Explore alternative ways to capture garden moments in a journal\, using word lists\, sketching and more. Tap into the power of language and drawing to enlarge your experience and hone your observation of the natural world. Lorene and Sue will inspire you to capture months\, days or ideas with a personal approach. Suitable for beginners\, non-artists\, and those who are experienced. Sketchbook journals\, pens\, and pencils will be provided. \nInstructors’ Bios: \nLorene Edwards Forkner is an author and speaker whose work centers on exploring the wonders of the natural world. She regularly contributes to the weekly GROW column for Pacific NW Magazine in the Seattle Times and is the author of numerous gardening titles\, including “Color In and out of the Garden.” \nSue Goetz is a garden designer\, writer\, speaker and NHS board member. For garden inspiration\, she dabbles in botanical art\, pressed flowers and mixed media. \n 
URL:https://northwesthort.org/event/garden-journaling-a-novel-approach-with-lorene-edwards-forkner-and-sue-goetz/
LOCATION:Dunn Gardens\, 13533 Northshire Rd. NW\, Seattle\, WA\, 98177
CATEGORIES:In-person Workshop
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/08/2025-09-11-Nature-Journaling-Thumb-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250908T183000
DTEND;TZID=America/Los_Angeles:20250908T200000
DTSTAMP:20260413T081059
CREATED:20250812T144258Z
LAST-MODIFIED:20250822T172546Z
UID:10000294-1757356200-1757361600@northwesthort.org
SUMMARY:The Essential Guide to Bulbs with Jenny Rose Carey
DESCRIPTION:We will be treated to a preview of Jenny Rose Carey’s latest book\, “The Essential Guide to Bulbs: Grow a Bounty of Beautiful Bulbs in Gardens and Containers\,” to be published by Timber Press in mid-October. Destined to become a gardening classic\, this must-read guide is a gorgeously photographed\, comprehensive and inviting resource that will appeal to gardeners of all levels. Jenny Rose will share her expertise on planting techniques\, design ideas\, growing bulbs in containers and gardens of any size\, how to incorporate bulbs for pollinators\, and personalizing a garden to match your vision. \nSpeaker’s Bio: \nJenny Rose Carey is an avid hands-on gardener\, professional horticulturist and the author of “Glorious Shade” and “The Ultimate Flower Gardener’s Guide.” Born in England to a family of botanists and gardeners\, she grew up in the countryside and designed her first herb garden at age sixteen. She moved with her American husband to the Philadelphia area and has gardened there ever since. With degrees in biology\, horticulture and education\, Jenny Rose has been the director of two public gardens\, the Ambler Arboretum of Temple University and the Pennsylvania Horticultural Society’s Garden at Meadowbrook Farm. \nTo pre-order a signed copy: https://jennyrosecarey.com/product/the-ultimate-flower-gardeners-guide-signed-copy/ \nAdditional Resources: \nhttps://beforeyougarden.com/ \nhttps://www.instagram.com/jennyrosecarey/
URL:https://northwesthort.org/event/the-essential-guide-to-bulbs-with-jenny-rose-carey/
LOCATION:Live Webinar
CATEGORIES:Live Webinar
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/08/2025-09-10-The-Essential-Guide-to-Bulbs-with-Jenny-Rose-Carey-Thumb.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250905T090000
DTEND;TZID=America/Los_Angeles:20250905T120000
DTSTAMP:20260413T081059
CREATED:20250721T212725Z
LAST-MODIFIED:20250818T052229Z
UID:10000290-1757062800-1757073600@northwesthort.org
SUMMARY:UW Farm Tour with Farm Manager Perry Acworth (SOLD OUT)
DESCRIPTION:Experience a vibrant hub of urban agriculture at the height of harvest season with UW Farm Manager Perry Acworth. She will guide us through this student-powered 1.5-acre production site\, highlighting seasonal vegetables\, fruits and flowers. Dedicated to sustainability\, education and community impact\, the farm has produced over 10 tons of organic food using sustainable farming practices that increase production and minimize ecosystem impact. Participants will take part in a flower harvesting and bouquet-making activity; the arrangements will be sold to support farm operations. We’ll also delve into the farm’s role as a living laboratory for student learning\, internships and research on soil health\, pollinators and sustainable agriculture. Perry will highlight the farm’s commitment to community\,\, including efforts to reduce food insecurity\, promote volunteer engagement\, compost organic waste\, and conserve water\,  all while fostering a deeper connection between people\, food and the environment. \nGuide’s Bio:  \nPerry Acworth has served as UW farm manager since 2018 and is a leader in sustainable agriculture and experiential education. Her work connects people to the food system through hands-on\, community-driven learning. In 2020\, she received the UW Distinguished Staff Award for Excellence for her outstanding contributions to student mentorship\, urban farming and community engagement.
URL:https://northwesthort.org/event/uw-farm-tour-with-farm-manager-perry-acworthator-ray-larson-2/
LOCATION:Center for Urban Horticulture\, 3501 NE 41st St\, Seattle\, WA\, 98105
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/07/2025-09-05-Tour-the-UW-Farm-with-Perry-Acworth-Thumb-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250828T100000
DTEND;TZID=America/Los_Angeles:20250828T120000
DTSTAMP:20260413T081059
CREATED:20250721T151829Z
LAST-MODIFIED:20250724T004353Z
UID:10000289-1756375200-1756382400@northwesthort.org
SUMMARY:Discover PowellsWood Garden (SOLD OUT)
DESCRIPTION:PowellsWood Garden blends the enchantment of a curated\, English-style garden with the untamed allure of a Pacific Northwest forest. The cultivated 3-acre garden is filled with over 1000 plant species and is a portal to a 37-acre nature preserve rich with native plants and wildlife. Gardener Damon Gardyne will lead us on a tour and share the garden’s history and sustainability ethos\, plants of interest\, gardening tips and some of its new developments. \nGuide’s Bio: \nDamon Gardyne has worked in horticulture for 22 years and joined PowellsWood in 2019. He is currently restoring a stream\, designing a children’s garden and updating two tropical display gardens. He studied Japanese pruning with Masa Mizuno at Clackamas College in Oregon and at the Kubota Garden in Seattle. \n“You’ll feel like you’re in Sissinghurst Garden when you visit this classic English-style garden made up of gorgeous garden rooms. Each section is separated by hedges and contains colorful mixed borders of perennials and specimen trees and shrubs.”   \n — Ciscoe Morris\, garden expert\, speaker and author (Courtesy of Puget Sound Public Gardens)
URL:https://northwesthort.org/event/discover-powellswood-garden/
LOCATION:PowellsWood Garden\, 430 S Dash Point Rd\, Federal Way\, Washington\, 98003
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/07/2025-08-28-Discover-PowellsWood-Garden-Thumb-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250820T183000
DTEND;TZID=America/Los_Angeles:20250820T200000
DTSTAMP:20260413T081059
CREATED:20250707T195043Z
LAST-MODIFIED:20250808T080252Z
UID:10000286-1755714600-1755720000@northwesthort.org
SUMMARY:Hardy Begonias: Secrets to Success with Ann Amato
DESCRIPTION:Begonias are Boss! If you’re still in doubt\, the late great \nChristopher Lloyd (of Great Dixter fame) said that if he were reduced \nto growing only one genus\, Begonia would be it. \n— NHS Board Member and Horticulturally Yours author Daniel Sparler\n  \nBegonias star in Pacific Northwest gardens more and more frequently\, thanks in large part to Dan Hinkley and Shayne Chandler’s introductions from their expeditions to Arunachal Pradesh in northeast India. Veteran begonia propagator Ann Amato will focus on species that are borderline hardy in our region and worthy of being grown more frequently. She will share the keys to success with hardy begonias\, including how to propagate and grow them\, how to create favorable microclimates and – of course – exercising patience. Several of her favorite species will be discussed\, and stories from professionals and collectors around the region will be shared. \nSpeaker’s Bio: \nAnn is an avid horticulturist\, writer and speaker. Years ago\, while working at Cistus Nursery\, she discovered its begonia collection in the back corner of a stock greenhouse…and she’s been working with them professionally ever since. Today\, Ann is the production manager at Secret Garden Growers and a part-time propagation assistant at Little Prince of Oregon Nursery\, both in the Willamette Valley. She earned a B.A. from Portland State University and an A.A.S. in horticulture from Clackamas Community College. Ann’s exuberant home garden is featured in the recently published book\, “The Spirited Garden: Creative Private Retreats.” At 18\, she published the book “Ancient Forests and Western Man: A Pictorial History of the West Coast.” She lives and gardens in Southeast Portland at Campiello Maurizio\, aka the Garden of One-of-Each-ee. \nAdditional Resources: \nhttps://northwesthort.org/horticulture/begonias-for-beginners-part-i/\nhttps://northwesthort.org/horticulture/begonias-for-beginners-part-ii/
URL:https://northwesthort.org/event/hardy-begonias-with-ann-amato/
LOCATION:Live Webinar
CATEGORIES:Live Webinar
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/07/2025-08-25-Hardy-Begonias-with-Ann-Amato-Thumb-2.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250814T100000
DTEND;TZID=America/Los_Angeles:20250814T120000
DTSTAMP:20260413T081059
CREATED:20250714T180057Z
LAST-MODIFIED:20250721T183222Z
UID:10000288-1755165600-1755172800@northwesthort.org
SUMMARY:Trees and Shrubs for Small Gardens at the Miller Garden (SOLD OUT)
DESCRIPTION:Head Gardener Del Brummet will dive deep into the Miller Garden’s famed woody plant collection. The garden’s space is at a premium and plants need to earn their place in the garden. Though the garden has several acres\, it is amazing how quickly it starts to fill to the brim…especially when the original owner was an avid plant collector! Let’s look at plants which can grow in small spaces or are good at growing below other plants in a layered canopy\, with a focus on narrow plants and those which grow slowly and add an appealing diversity and texture to the landscape. \nDel became interested in plants through hiking and building trails with the Washington Trails Association. He graduated from the University of Washington in 2014 with a B.S. in biology and now works as head gardener at the Elizabeth C. Miller Botanical Garden. Del has taught classes through NHS in native and exotic plants\, propagation\, seasonal interest and continues to learn and contribute to the organization through its education programming.  \n$25 of each registrant’s fee will be remitted to Great Plant Picks.
URL:https://northwesthort.org/event/trees-and-shrubs-for-small-gardens-at-the-miller-garden/
LOCATION:Elisabeth C. Miller Botanical Garden (Address will be made available to registrants two days prior to event.)\, Seattle\, WA
CATEGORIES:In-person Class
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/07/2025-08-14-Trees-Shrubs-for-the-Small-Garden-Thumb-Sold-Out.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250813T100000
DTEND;TZID=America/Los_Angeles:20250813T123000
DTSTAMP:20260413T081059
CREATED:20250706T234253Z
LAST-MODIFIED:20250724T224808Z
UID:10000284-1755079200-1755088200@northwesthort.org
SUMMARY:Floral Design Workshop with Riz Reyes at Heronswood (SOLD OUT)
DESCRIPTION:A special opportunity to learn from Heronswood Garden’s Assistant Director Riz Reyes. He will give us a tour of the late summer garden that will inspire a cut flower arrangement you will learn how to create and take home with you. Find ideas and inspiration from the lush woodland and native gardens\, exuberant perennial borders and formal gardens and learn about what holds up as a cut flower. Riz will demonstrate basic arrangement techniques and mechanics using simple materials and tools. Then you will assemble your own small\, hand-tied bouquet to take home. All supplies are provided\, including locally grown flowers and materials gathered from the garden. No previous experience is necessary – novice flower enthusiasts are encouraged to register. \nInstructor’s Bio:   \nRiz is a Filipino-American horticulturist and floral design educator through his venture\, RHR Horticulture & Landwave Gardens. He has been gardening\, designing and inspiring for over 20 years in the Seattle area. After earning his bachelor of science degree in environmental horticulture and urban forestry from UW\, he was a gardener at the Center for Urban Horticulture for eight years and the gardens manager at McMenamin’s Anderson School for six. The American Gardener lauded Riz as “one of American horticulture’s rising stars.” His children’s book\, “GROW: A family guide to plants and how to grow them\,” was published in 2022. \n$60 of each registrant’s fee will be donated to Heronswood Garden.
URL:https://northwesthort.org/event/floral-design-tour-workshop-with-riz-reyes/
LOCATION:Heronswood Garden\, 7530 NE 288th St.\, Kingston\, WA\, 98346
CATEGORIES:In-person Workshop
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/07/2025-08-16-Floral-Design-Tour-Workshop-with-Riz-Reyes-at-Heronswood-Thumb-1-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250809T100000
DTEND;TZID=America/Los_Angeles:20250809T113000
DTSTAMP:20260413T081059
CREATED:20250617T033204Z
LAST-MODIFIED:20250804T010407Z
UID:10000282-1754733600-1754739000@northwesthort.org
SUMMARY:Growing Without Peat: Environmental Innovation in Horticulture with the RHS
DESCRIPTION:Peatlands are rare and endangered ecosystems that store over twice as much carbon as all the world’s forests combined. Choosing peat-free garden products is a vital step in helping reduce damaging environmental and climate impacts and the Royal Horticultural Society (RHS) is at the forefront of doing research and raising awareness about the negative effects of peat extraction and use of peat products. It is committed to becoming 100% peat-free across all operations\, including shows\, gardens and retail\, by the end of 2025. \nRHS Peat-Free Transition Project Co-ordinator Nikki Barker will outline how the RHS is conducting studies and developing data-driven sustainable practices to aid gardeners\, growers and farmers make informed decisions in their transition to peat-free cultivation. She will also discuss sustainable alternatives and global perspectives in growing media. \nNHS Board Member Sue Goetz will co-host and share local peat-free resources\, practices and information for Pacific Northwest gardeners and growers. \nSpeaker’s Bio: \nNikki Barker has a Master of Horticulture from the RHS and over 40 years of experience across commercial production\, retail\, landscaping and education. She is the author of Propagation Techniques: The Essential Guide to Producing Plants and has worked in peat-free commercial horticulture both in the UK and Australia. Her deep-rooted expertise and passion for sustainable growing and industry development inspires growers\, educators\, students and home gardeners alike. She has held roles as a commercial manager and lecturer at Hadlow College\, and currently serves as a Governor at Capel Manor College\, championing horticultural education and innovation. 
URL:https://northwesthort.org/event/growing-without-peat-environmental-innovation-in-horticulture-with-the-rhs/
LOCATION:Live Webinar
CATEGORIES:Live Webinar,Members Free Lecture Series
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/06/2025-08-09-Growing-Without-Peat-Thumb-Members-Free.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250806T100000
DTEND;TZID=America/Los_Angeles:20250806T150000
DTSTAMP:20260413T081059
CREATED:20250617T035610Z
LAST-MODIFIED:20250721T183131Z
UID:10000283-1754474400-1754492400@northwesthort.org
SUMMARY:Meet the Designer: Susan Calhoun Tour — Bainbridge Island and Indianola (SOLD OUT)
DESCRIPTION: Local landscape designer Susan Calhoun — whose recent NHS webinars on grasses and shade plants you may have enjoyed — will treat us to on-site visits to four of her gardens on Bainbridge Island and the Kitsap Peninsula\, including her own personal one. Starting in Bainbridge Island at Arrow Point\, we first visit a “forest getaway” with a luscious shade garden surrounding a modern home with floor-to-ceiling windows facing the Olympics. The beds combine native salal\, huckleberry and ferns with more cultivated plants for a quintessential Pacific Northwest landscape. Next we head north to Port Madison where Susan performed a deep redesign to create a magical space for a family wedding. The result: a picture-perfect lawn for the ceremony\, graced by a shade garden on one side and fruit trees and a vegetable garden on the sunny side. Susan’s own 3.5 acre garden in Indianola is our next stop and we’ll enjoy lunch here (choose your meal option during registration). When she bought the property in 2015\, it was nothing but lawn\, blackberry\, horsetail and overgrown trees. Since then\, she has brought much to life: a streamside garden\, a shade garden\, a large grass garden and productive vegetable beds. She is experimenting with a bulb meadow under white birch trees\, a wildflower meadow and a rose garden. Our final stop is nearby: A south-facing modern house that looks towards Mt Rainier. Here Susan developed a fabulous beach garden\, using the owner’s narrow color palette and many plants from nearby Windcliff Nursery. Grasses\, yarrow and agapanthus abound alongside drought-tolerant salvias\, rosemary and unusual shrubs that offer structure and privacy. \nWe will meet on Bainbridge Island and end in Indianola. Addresses will be sent to registrants a few days in advance. Coming from Seattle you will take the Bainbridge ferry in the morning and the Kingston/Edmonds on return (or return back to Bainbridge and take that ferry). Carpooling is encouraged. \nGuide’s Bio: \nSusan Calhoun is a landscape designer\, writer and speaker with over 25 years of experience gardening in our shade-rich region. Based on Bainbridge Island\, she is the owner and principal designer of Plantswoman Design. She received her horticultural training at South Seattle College and RHS Garden Harlow Carr in the UK. Susan’s work has been featured in Sunset\, Fine Gardening\, Monrovia’s Be Inspired blog and many other national and local publications. She is a frequent speaker and contributor to the Northwest Flower & Garden Festival\, having created award-winning gardens for many years.
URL:https://northwesthort.org/event/meet-the-designer-susan-calhoun-tour/
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/06/2025-08-06-Meet-the-Designer-Tour-with-Susan-Calhoun-Thumb-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250730T100000
DTEND;TZID=America/Los_Angeles:20250730T120000
DTSTAMP:20260413T081059
CREATED:20250608T193832Z
LAST-MODIFIED:20250728T184827Z
UID:10000279-1753869600-1753876800@northwesthort.org
SUMMARY:Summer Pruning for Your Garden with Christina Pfeiffer (SOLD OUT)
DESCRIPTION:Some gardeners are reluctant or even fearful of pruning shrubs and garden trees in summer. There are good reasons to be cautious\, but right now can also be an ideal time to address specific pruning goals and do maintenance pruning on certain types of plants. Christina Pfeiffer will explain and demonstrate how appropriate pruning on select plants in the warmer months can help ensure plant health and display. \nInstructor’s Bio: \nChristina is a horticulture educator and an ISA Certified Arborist® who has enjoyed a long career in landscape horticulture. She holds degrees in horticulture from Michigan State University and UW\, and emphasizes sustainable garden practices that work in sync with nature. Christina is a longstanding pruning instructor at the Edmonds College horticulture program and regularly offers classes on various pruning. She is co-author with Mary Robson of “Pacific Northwest Month-by-Month Gardening.”
URL:https://northwesthort.org/event/summer-pruning-for-your-garden-with-christina-pfeiffer/
LOCATION:Magnuson Children’s Garden\, 6344 NE 74th St.\, Seattle\, WA\, 98115
CATEGORIES:In-person Class
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/06/2025-07-30-Summer-Pruning-for-Your-Garden-with-Christina-Pfeiffer-Thumb-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250723T183000
DTEND;TZID=America/Los_Angeles:20250723T200000
DTSTAMP:20260413T081059
CREATED:20250520T002920Z
LAST-MODIFIED:20250602T210603Z
UID:10000271-1753295400-1753300800@northwesthort.org
SUMMARY:Delving into the Plantings of Seattle's New Waterfront Park with Richard Hartlage
DESCRIPTION:Seattle’s Waterfront Park is populated with an astounding number of plants: 124\,000. Richard Hartlage of Land Morphology developed the immersive planting design in collaboration with Field Operations\, the project’s lead landscape architect and urban planner. Richard will present how the plants are organized and maintained across 20 acres and 26 city blocks. Each planting zone tells a unique story rooted in local history and ecology and exemplifies how thoughtful planting design creates spaces that connect the community with nature\, enhance biodiversity and serve as models for sustainable urban development. \nSpeaker’s bio:  \nRichard Hartlage is the CEO and founding partner of the Seattle-based landscape architectural firm Land Morphology. His award-winning designs incorporate sophisticated horticulture and historical knowledge to heighten the human experience of the natural world. Richard’s passion for horticulture\, cultivated while working in public gardens and estates and managing landscape architecture studios\, is applied to each design from the conceptual phase through development of maintenance protocol and beyond.   \nThe firm’s portfolio includes the Leach Botanical Garden in Portland\, the Herb and Vegetable Garden at the Brooklyn Botanical Garden\, Chihuly Garden and Glass\, and numerous private residential landscapes and commercial projects across eight states. Richard has contributed to six books on horticulture and landscape architecture\, including “The Authentic Garden: Naturalistic and Contemporary Planting design in Landscape Architecture.” He received the American Horticultural Society’s Great American Gardeners Award in 2018 and the Mrs. Oakleigh Thorne Medal from the Garden Club of America in 2025.
URL:https://northwesthort.org/event/delving-into-the-plantings-of-seattles-new-waterfront-park-with-richard-hartlage/
LOCATION:Live Webinar
CATEGORIES:Live Webinar
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-07-23-The-New-Seattle-Waterfront-Thumb-1.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250720T100000
DTEND;TZID=America/Los_Angeles:20250720T160000
DTSTAMP:20260413T081059
CREATED:20250607T225051Z
LAST-MODIFIED:20250722T020925Z
UID:10000278-1753005600-1753027200@northwesthort.org
SUMMARY:Free Members Meet the Board Tour at Nine Private Gardens in South and West Seattle
DESCRIPTION:Your NHS Board looks forward to welcoming you to a free\, in-person event: a self-guided tour of nine unique private gardens that showcase our region’s range of talent and vision. At least one board member will be at each garden\, which are owned by a combination of board members and members. Three of these gardens were recently profiled in the Seattle Times Pacific NW Magazine (indicated by *). \nThis event is free to members\, who are welcome to bring one non-member guest. Please register if you are planning to attend. Garden addresses and details will be sent a few days before the event. \nSouth Seattle \nCasa Nirvana in historic Mt. Baker is a tapestry garden ingeniously landscaped on a sloped site above street level. A parade of striking foliage and unusual specimens from specialty nurseries on both coasts is punctuated with thoughtfully placed sculpture. Learn more here. \nThe Garden of Exuberant Refuge in Seward Park flouts convention and invites wonder with a show-stopping 4800 taxa\, many of which are from the Southern hemisphere. This revelatory landscape has been created over 30 years thanks to great wit\, deep botanical knowledge and global exploration. \nWest Seattle \nThis small garden doubles as a living workshop and thrums with color\, texture\, movement and good flavors. Shades of orange\, rust\, amber and brown dominate\, with the occasional dash of hot pink and violet. Ornamental grasses and evergreens lend structure and frame perennials and edible crops. \nInspired by Kyoto gardens of the early 20th century\, this tranquil and transporting garden features a flowing series of changing vistas filled with unusual Asian shrubs and perennials\, along with uncommon selections of familiar garden favorites. \n*A striking drought-tolerant landscape\, where full-sun plants thrive in islands surrounded by crushed gravel pathways. Many species are labeled so visitors can glean inspiration for their own drought-tolerant spaces. \n*A whimsical cottage garden centers wildlife-friendly\, sustainable practices. This no-turf site is an homage to Pacific Northwest native plants and is filled with natural stonework\, bug hotels\, varieties of branch fencing\, gnome homes and a chicken palace. \n*A very mature garden filled with graceful old trees\, shrubs\, ferns and new introductions. Wander the bark paths\, sit in the shade arbor and appreciate the vegetable garden\, a 35-year old blueberry plant and stately lion’s head maples. \nBombdiggity Gardens’ rear garden ascends up a series of stairs and terrace walls\, creating various seating areas\, each with its own microclimate. The sound of a fountain\, along with hardy banana\, palm\, and edibles like persimmon\, kiwi and fig create a sense of escape to warmer\, far-away lands. \nAn inviting combo of food and ornamental plants delivers maximum pollinator power\, minimal maintenance and room for all creatures great and small\, including children and chickens. Embodying Doug Tallamy’s homegrown national park concept\, it is a certified pollinator garden through The Xerces Society.
URL:https://northwesthort.org/event/free-members-meet-the-board-tour-at-nine-private-gardens-in-west-and-south-seattle/
CATEGORIES:Members Free Garden Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/06/2025-07-20-MTBT-Thumb-07-Wysdom-Beausoleil-1.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250716T183000
DTEND;TZID=America/Los_Angeles:20250716T200000
DTSTAMP:20260413T081059
CREATED:20250520T013620Z
LAST-MODIFIED:20250708T041729Z
UID:10000275-1752690600-1752696000@northwesthort.org
SUMMARY:Far and Near: Native and Not-So-Native Plants for the Pacific Northwest Gardener with Daniel Mount
DESCRIPTION:Past NHS Board Member Daniel Mount will take us on an engaging tour of Pacific Northwest ecosystems and their plants. He’ll explain what makes a plant native or not\, share which native species perform best in a garden situation\, and tell you why you should – or shouldn’t – plant them. Part travelogue\, part how-to\, this lively presentation will illustrate the ups and downs of gardening with native plants in the Pacific Northwest. \nSpeaker’s Bio:  \nDaniel Mount is a retired garden creator\, writer and botanist who hails from a long line of wandering gardeners\, nurserymen and farmers. Originally from Wisconsin\, he received his B.S. in botany from the University of Wisconsin-Milwaukee and completed a taxonomic botany internship at the Missouri Botanical Garden. He was lead gardener for Ethel Rae Perkins Garten Gestaltung in the Rhineland of Germany and curator at Orto dei Semplici Elbano in Italy. Daniel now makes his home on a 7-acre farm in the Snoqualmie Valley\, where he and his partner grow a wide variety of edibles and ornamentals\, specializing in ferns and mums. He writes for many West Coast horticulture publications\, and has had articles appear in Fine Gardening and The American Gardener.
URL:https://northwesthort.org/event/lecture-title-far-and-near-native-and-not-so-native-plants-for-the-pacific-northwest-gardener-with-daniel-mount/
LOCATION:Live Webinar
CATEGORIES:Webinar Lecture
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-07-16-Far-and-Near-Thumb-2.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250716T100000
DTEND;TZID=America/Los_Angeles:20250716T120000
DTSTAMP:20260413T081059
CREATED:20250602T203837Z
LAST-MODIFIED:20250608T152400Z
UID:10000277-1752660000-1752667200@northwesthort.org
SUMMARY:Sweet Pea School at The Farmhouse Flower Farm with Marryn Mathis (SOLD OUT)
DESCRIPTION:Join Marryn Mathis\, nationally hailed as the Sweet Pea Queen\, for a sweet pea-focused tour of The Farmhouse Flower Farm in verdant Snohomish County. She will graciously share tips and techniques to help you maximize the productivity of this cherished\, fragrant plant in your own garden and expand your appreciation for its intoxicating profusion of colors and varieties. Marryn is the author of the recently published book\, “Sweet Pea School: Growing & Arranging the Garden’s Most Romantic Blooms\,” and signed copies will be available for purchase. \nInstructor’s Bio: \nMarryn is a champion of and authority on sweet peas. Her ten-acre farm is one of the country’s foremost flower farms\, with a vibrant mail-order business in seeds\, dahlia tubers\, corms and bulbs. She has a robust social media following and offers in-demand online and in-person workshops that regularly sell out. \nAdditional Resources: \nhttps://www.seattletimes.com/pacific-nw-magazine/stanwoods-sweet-pea-queen-shares-her-floral-passion-and-pro-tips/ \nhttps://www.slowflowerspodcast.com/2025/02/19/episode-704-sweet-pea-school-with-marryn-mathis-of-the-farmhouse-flower-farm/ \nhttps://www.instagram.com/thefarmhouseflowerfarm/ \nhttps://www.facebook.com/profile.php?id=100064278115690&sk=about
URL:https://northwesthort.org/event/sweet-pea-school-at-the-farmhouse-flower-farm-with-marryn-mathis/
LOCATION:Flowerhouse Farm\, 29520 28th Ave. NW\, Stanwood\, WA\, 98292
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/06/2025-07-17-Sweet-Pea-School-Farm-Tour-Thumb-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250709T183000
DTEND;TZID=America/Los_Angeles:20250709T200000
DTSTAMP:20260413T081059
CREATED:20250527T154032Z
LAST-MODIFIED:20250708T142644Z
UID:10000276-1752085800-1752091200@northwesthort.org
SUMMARY:Dishing Dirt with Richie and Bess: Summertime Gardens
DESCRIPTION:Bess and Richie are back with their best tips and suggestions to help your garden look its best! They will tackle the list of summer chores and let you know what needs to be done now and what can wait. They’ll discuss some of their favorite annuals to use for a boost of color as summer heats up. Have you started to see damage on your plants? Learn about common Pests and Plagues of Summer. Do you have questions? Now is the time to ask two of NHS’ s experienced experts! \nSpeakers’ Bios: \nBess Bronstein is an ISA certified arborist\, educator and horticultural consultant based on the Kitsap Peninsula in Kingston\, Washington. She has 35 years of experience in arboriculture\, landscape management and garden design. Bess was an instructor at the Edmonds College horticulture program for 28 years\, with a focus on courses in pruning and tree care\, plant identification\, plant pests and diagnosis\, and soils. \nRichie Steffen\, former president and board member of NHS\, is enthusiastic about (or more accurately\, obsessed with) plants. He is the executive director for the Elisabeth C. Miller Botanical Garden where he oversees the Garden\, its rare plant collections and its primary educational program\, Great Plant Picks. 
URL:https://northwesthort.org/event/dishing-dirt-with-richie-and-bess-summertime-gardens/
LOCATION:Live Webinar
CATEGORIES:Webinar Lecture
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-07-09-Richie-and-Bess-Dishing-Dirt-Summertime-Gardens-Thumb.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250708T100000
DTEND;TZID=America/Los_Angeles:20250708T120000
DTSTAMP:20260413T081059
CREATED:20250520T141225Z
LAST-MODIFIED:20250706T004256Z
UID:10000274-1751968800-1751976000@northwesthort.org
SUMMARY:Pressed Flower Workshop at Lakewold Gardens with Sue Goetz (SOLD OUT)
DESCRIPTION:Learn how to make your own flower press from the endlessly creative Sue Goetz. She will share many invaluable tips and techniques for pressing flowers and leaves – and the best plants to use in this storied botanical art form. She will demonstrate how the pressings can enhance a range of décor projects\, including the creation of herbarium pages. There will be fresh plants on hand to add to your new press and a collection of dried\, pressed materials for making notecards. Everything you create during this workshop will go home with you. All supplies are included\, but feel free to bring inspiring leaves and flowers from your garden. \nInstructor’s Bio: \nSue Goetz is a garden designer\, writer\, speaker and NHS board member. For garden inspiration\, she dabbles in botanical art\, pressed flowers and mixed media.
URL:https://northwesthort.org/event/pressed-flower-workshop-with-sue-goetz/
LOCATION:Lakewold Gardens\, 12317 Gravelly Lake Dr. SW\, Lakewood\, WA\, 98499
CATEGORIES:In-person Class
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/06/2025-07-08-Pressed-Flower-Workshop-with-Sue-Goetz-Thumb-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250626T100000
DTEND;TZID=America/Los_Angeles:20250626T120000
DTSTAMP:20260413T081059
CREATED:20250505T225823Z
LAST-MODIFIED:20250805T010957Z
UID:10000265-1750932000-1750939200@northwesthort.org
SUMMARY:Seattle Waterfront Tour with Richard Hartlage (SOLD OUT)
DESCRIPTION:Join us for a walking tour of Seattle’s newest and boldest urban park\, led by Richard Hartlage of Land Morphology\, which provided planting design services for this expansive project. The park skims along Elliott Bay\, spanning 20 acres and 26 blocks\, and features 500 plant varieties and nearly 800 trees. Each planting zone tells a unique story rooted in local history and ecology and exemplifies how thoughtful planting design creates spaces that connect the community with nature\, enhance biodiversity and serve as models for sustainable urban development. Overlook Walk is populated with species native to Puget Sound’s coastal bluffs and provide valuable shade\, habitat and stormwater filtration. The Aquarium Rooftop’s native meadow landscape was designed with guidance from traditional ecological knowledge-keeper Valerie Segrest\, an enrolled member of the Muckleshoot Indian Tribe.   \nTour leader’s bio:  \nRichard Hartlage is the CEO and founding partner of the Seattle-based landscape architectural firm Land Morphology. His award-winning designs are emotive\, immersive spaces that incorporate sophisticated horticulture and historical knowledge to heighten the human experience of the natural world. Richard’s passion for horticulture\, cultivated while working in public gardens and estates and managing landscape architecture studios\, is applied to each design from the conceptual phase through development of maintenance protocol and beyond.   \nThe firm’s portfolio includes the Leach Botanical Garden in Portland\, the Herb and Vegetable Garden at the Brooklyn Botanical Garden\, Chihuly Garden and Glass\, and numerous private residential landscapes and commercial projects across eight states. Richard has contributed to six books on horticulture and landscape architecture\, including “The Authentic Garden: Naturalistic and Contemporary Planting design in Landscape Architecture.” He received the American Horticulture Society’s Great American Gardeners Award in 2018 and the Mrs. Oakleigh Thorne Medal from the Garden Club of America in 2025.  \n \n \n \n \n \nSeattle Waterfront Plan
URL:https://northwesthort.org/event/seattle-waterfront-tour-with-richard-hartlage/
LOCATION:Seattle Waterfront Park\, 1401 Alaskan Way\, Seattle\, WA\, 98101
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-06-26-Seattle-Waterfront-Tour-with-Richard-Hartlage-Thumb-1-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250625T183000
DTEND;TZID=America/Los_Angeles:20250625T200000
DTSTAMP:20260413T081059
CREATED:20250519T235515Z
LAST-MODIFIED:20250625T000359Z
UID:10000272-1750876200-1750881600@northwesthort.org
SUMMARY:Private Gardens of Philadelphia with Nicole Juday and Rob Cardillo
DESCRIPTION:The Greater Philadelphia region is heralded as America’s Garden Capital for good reason: within 30 miles of the City of Brotherly Love\, there are 30-plus public gardens\, arboreta and historic landscapes. In order to celebrate the area’s lesser known private gardens\, writer Nicole Juday and photographer Rob Cardillo published “Private Gardens of Philadelphia” in 2024. The book profiles 21 gardens\, which range in style from Old World formal to a collector’s paradise to landscaping designed to complement mid-century architecture. In this photo-rich presentation\, they will share the stories behind some of the most noteworthy. For more background\, listen to this interview with Nicole and Rob on “A Way to Garden with Margaret Roach.” \nSpeakers’ Bios: \nNicole Juday grew up in rural Illinois and first experienced great horticulture when she came to Philadelphia in the 1990s. Gardening then became the catalyst for a career change and a source of lifelong fascination and learning. She served as the rosarian for Wyck House and Garden\, the oldest rose garden in the country. Later she managed the renowned program at Barnes Arboretum School before working in several roles at the Pennsylvania Horticultural Society. She has served on the boards of Awbury Arboretum and Historic Fair Hill. She enjoys writing and speaking about gardens and garden history and tending her own garden in the historic Germantown section of Philadelphia. \nRob Cardillo has been photographing gardens\, plants\, and the people who love them for over thirty years. He has more than twenty-five books to his credit\, including “Private Edens\,” “The Private Gardens of South Florida\,” “The Art of Gardening” and “The Layered Garden.” He is a founding partner of Blue Root Media\, which produces GROW\, the award-winning magazine of the Pennsylvania Horticultural Society. Rob’s work is also frequently seen in major garden publications and news outlets. Winner of numerous photography awards\, he is a member of the GardenComm Hall of Fame. He lives and gardens in Ambler\, Pennsylvania\, near Philadelphia. \n \n \n  \n 
URL:https://northwesthort.org/event/private-gardens-of-philadelphia-with-nicole-juday-and-rob-cardillo/
LOCATION:Live Webinar
CATEGORIES:Webinar Lecture
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-06-25-Private-Gardens-of-Philadelphia-Thumb.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250619T100000
DTEND;TZID=America/Los_Angeles:20250619T120000
DTSTAMP:20260413T081059
CREATED:20250505T225231Z
LAST-MODIFIED:20250508T014804Z
UID:10000266-1750327200-1750334400@northwesthort.org
SUMMARY:Perfect Plants for the Shade Garden at Heronswood with Dr. Ross Bayton
DESCRIPTION:Expand your plant palette to include shade-loving plants on this tour led by Heronswood Garden’s Director Dr. Ross Bayton. He will reveal a wealth of richly hued and elaborately textured plants that flourish in various shade conditions: fuchsias to foamflowers\, hydrangeas to heucheras\, tassel ferns to toad lilies. And there’s a bonus: the garden’s show-stopping giant Himalayan lilies will be in their peak towering splendor. Bring your lunch and explore the garden after the tour until closing time at 3 pm. And of course\, many of the specimens you’ll fall in love with are available for purchase in the garden shop.  \nSpeaker’s Bio:   \nLondon-born botanist\, taxonomist\, plantsman and gardener Dr. Bayton received his Ph.D. in plant taxonomy from the Royal Botanic Gardens\, Kew. His intensive research and fieldwork in Kenya\, Madagascar and Burkina Faso led to a revision of the Borassus genus (palm). He is the author of several books\, including “New Trees: Introductions to Cultivation” (with John Grimshaw)\, “Plant Families: A Guide for Gardeners and Botanists” (with Simon Maugham)\, and most recently “The Gardener’s Botanical: An Encyclopedia of Latin Plant Names.” Ross was the gardening editor of the UK’s best-selling gardening periodical\, BBC Gardeners’ World Magazine. He joined Heronswood in 2017 as a botanist and became director in 2022. When not there\, he is cultivating his five-acre home garden in Bremerton.  \n \n \n \n  \n 
URL:https://northwesthort.org/event/perfect-plants-for-the-shade-garden-at-heronswood-with-dr-ross-bayton/
LOCATION:Heronswood Garden\, 7530 NE 288th St.\, Kingston\, WA\, 98346
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-06-19-Perfect-Plants-for-the-Shade-Garden-with-Heronswoods-Dr.-Ross-Bayton-Thumb-2.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250615T100000
DTEND;TZID=America/Los_Angeles:20250615T160000
DTSTAMP:20260413T081059
CREATED:20250512T232648Z
LAST-MODIFIED:20250614T023737Z
UID:10000270-1749981600-1750003200@northwesthort.org
SUMMARY:NHS Members' Day at the Rhododendron Species Botanical Garden (Members Only)
DESCRIPTION:We are very pleased to continue our tradition of hosting a Members’ Day at a local botanic garden – this year we are doing so at the unparalleled  Rhododendron Species Botanical Garden (RSBG). All members will have free access to the 22-acre garden on this special Members’ Day. This benefit allows members to connect with like-minded plant lovers and experience inspiring landscapes together. Members may register up to two guests\, who will be asked to pay the entry fee upon arrival ($10 for adults\, $7 for seniors and students). Please register if you plan to attend so we can get an accurate count for refreshments. \nRSBG Executive Director Steve Hootman and Horticulturalist and Assistant Curator Will Clausen will give alternating tours on the hour\, while Nursery Manager Atsuko Gibson will take us behind the scenes at the propagation houses. Additional botanical delights include the Victorian Stumpery\, Rutherford Conservatory\, Alpine Garden\, and the Pacific Bonsai Museum that is just steps away. Other June highlights are the in-bloom Kalmia latifolia (mountain laurel) and the striking new silver-blue leaves on Zenobia pulverulenta (honeycup). We encourage you to make a day of it: bring your lunch and picnic at the Rutherford Conservatory Terrace\, enjoy drinks and cookies provided by NHS\, peruse the gift shop and plants for sale in the nursery.
URL:https://northwesthort.org/event/nhs-members-day-at-the-rhododendron-species-botanical-garden/
LOCATION:Rhododendron Species Botanical Garden\, 2525 S. 336th St.\, Federal Way\, WA\, 98003
CATEGORIES:Members Free Garden Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/025-16-15-RSBG-Members-Day-at-RSBG-Thumbs-1.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250612T100000
DTEND;TZID=America/Los_Angeles:20250612T120000
DTSTAMP:20260413T081059
CREATED:20250505T232924Z
LAST-MODIFIED:20250528T014814Z
UID:10000268-1749722400-1749729600@northwesthort.org
SUMMARY:Summer Plants of CUH with Curator Ray Larson
DESCRIPTION:June is prime time at the Center for Urban Horticulture (CUH) and there is no better guide than Ray Larson\, curator of living collections and associate director of the University of Washington Botanic Gardens. With over thirty years’ experience at CUH\, he will highlight some of his favorite plants\, from the time-tested to the more recently planted\, and explain how they perform in the landscape. \nTour Leader’s Bio:  \nRay Larson is associate director\, curator of living collections and the Otis Hyde Herbarium\, at the University of Washington Botanic Gardens. He is also a past board member and president of NHS.
URL:https://northwesthort.org/event/summer-plants-of-cuh-with-curator-ray-larson/
LOCATION:Center for Urban Horticulture\, 3501 NE 41st St\, Seattle\, WA\, 98105
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-06-12-Ray-Larsons-favorite-plants-at-UWBG-Center-for-Urban-Horticulture-Thumb-1-1.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250611T183000
DTEND;TZID=America/Los_Angeles:20250611T200000
DTSTAMP:20260413T081059
CREATED:20250507T230641Z
LAST-MODIFIED:20250530T213235Z
UID:10000269-1749666600-1749672000@northwesthort.org
SUMMARY:The Evolution of the High Line Gardens with Richard Hayden
DESCRIPTION:Manhattan’s High Line gardens are celebrated for their mesmerizing naturalistic beauty throughout every season\, despite unprecedented urban constraints: human-made beds installed 30 feet above street level along 1.5 miles of a decommissioned elevated rail line. Richard Hayden\, the site’s senior director of horticulture since 2022\, will present the plants\, techniques and planning – including recent input from its designer\, the legendary Piet Oudolf – that allow this exemplary urban park to flourish\, evolve and inspire.   \nSpeaker’s Bio: \nRichard Hayden is a passionate horticulturist dedicated to an ecological and naturalistic approach to garden care and design. He leads a team of horticulturists in the stewardship and public programming at the High Line gardens in New York City. He previously served as the assistant deputy director at the Natural History Museum of Los Angeles County (NHMLA) where he was the primary project manager for the reimagining of the La Brea Tar Pits Museum and 11-acre park site. He also oversaw the Nature Gardens at NHMLA\, a wildlife habitat garden on which he collaborated with scientists\, educators and interpreters to promote the garden as a leading site for the study of urban nature. Richard is a past chair of the board of directors of the Pacific Horticulture Society and a past president of the Los Angeles District of the Association of Professional Landscape Designers. Prior to working in public horticulture\, he worked for 20-plus years as a Los Angeles-based landscape designer.  \n  \nAdditional Resources: \nhttps://www.instagram.com/naturegardener/  \n https://awaytogarden.com/the-high-lines-naturalistic-gardening-lessons-with-richard-hayden/  \n https://www.nytimes.com/2024/06/26/realestate/high-line-nyc.html  \n 
URL:https://northwesthort.org/event/the-evolution-of-the-high-line-gardens-with-richard-hayden/
LOCATION:Live Webinar
CATEGORIES:Webinar Lecture
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/05/2025-06-11-The-Evolution-of-the-High-Line-Gardens-with-Richard-Hayden-Thumb.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250607T100000
DTEND;TZID=America/Los_Angeles:20250607T113000
DTSTAMP:20260413T081059
CREATED:20250422T150148Z
LAST-MODIFIED:20250503T182816Z
UID:10000264-1749290400-1749295800@northwesthort.org
SUMMARY:Plant Community: Gardens as Social Infrastructure with Chris Fehlhaber
DESCRIPTION:For the past decade\, Chris Fehlhaber has engaged in public and private garden projects in Pennsylvania and Wisconsin\, including eight yeas as a horticulturalist at Chanticleer. He believes that dynamic gardens at existing sites of social infrastructure — like public libraries and community centers — provide the most profound impact and value in their communities. He is deeply committed to raising the public’s consciousness and appreciation of enriching\, progressive horticulture. He will inspire and motivate us with an overview of these powerful principles and projects. \nSpeaker’s Bio: \nChris Fehlhaber holds degrees in landscape architecture-natural resources and environmental studies from the University of Wisconsin. He regularly writes\, teaches\, and speaks on plants and gardening. He is the Perennial Plant Association’s Mid-Atlantic regional director and a co-host on The Native Plant Podcast. \n Additional Resource: \nhttps://www.instagram.com/chrisfehlhaber/?hl=en 
URL:https://northwesthort.org/event/plant-community-gardens-as-social-infrastructure-with-chris-fehlhaber/
LOCATION:Live Webinar
CATEGORIES:Members Free Lecture Series,Webinar Lecture
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/04/2025-06-07-Plant-Community-Gardens-as-Social-Infrastructure-Chris-Fehlhaber-Thumb-Free.jpg
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250605T100000
DTEND;TZID=America/Los_Angeles:20250605T120000
DTSTAMP:20260413T081059
CREATED:20250414T195650Z
LAST-MODIFIED:20250604T013549Z
UID:10000259-1749117600-1749124800@northwesthort.org
SUMMARY:Soos Creek Botanical Garden Walk with Walt -- CLASS IS FULL/REGISTRATION CLOSED
DESCRIPTION:Walt Bubelis will provide rich commentary as he guides us along the main paths of the Soos Creek Botanical Garden and Heritage Center\, which features a pleasing range of native and exotic plants. The site’s 23 acres were part of the land the current owner’s Norwegian ancestors began purchasing in 1892. Today the garden boasts numerous prize specimens\, some of which date back to its inception in the 1960s. The center is dedicated to sharing its various international\, regional and historical horticultural inspirations while honoring the local history of the Soos Creek Plateau. After the tour\, enjoy a picnic lunch on the grounds and explore other areas such as the aviary and rose garden. \nWalt Bubelis is professor emeritus of horticulture at Edmonds College and a valued pillar of the local horticulture community. He is an active member on boards and committees at the UW Botanic Garden\, Kruckeberg Botanic Garden and the Edmonds College horticulture program. He leads frequent tours and classes for many of the Puget Sound’s leading horticultural organizations. \n \n \n \n  \n  \n 
URL:https://northwesthort.org/event/soos-creek-botanical-garden-walk-with-walt/
LOCATION:Soos Creek Botanical Garden\, 29308 132nd Ave. SE\, Auburn\, WA\, 98092
CATEGORIES:In-person Day Tour
ATTACH;FMTTYPE=image/jpeg:https://northwesthort.org/wp-content/uploads/2025/04/2025-06-25-Soos-Creek-Botanical-Garden-walk-with-Walt-Thumb-Soldout.jpg
ORGANIZER;CN="Northwest Horticultural Society":MAILTO:info@northwesthort.org
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