American Horticultural Society

Washington Park Arboretum – Fall Plant Sale (Seattle, WA)

Idaho Botanical Garden – Bug Day (Boise, ID)

Join us on Saturday, September 16, 2023, from 10a – 4p (last entry at 3p) at the Idaho Botanical Garden for a day full of bug-themed activities from local organizations, live music, a VW Bug car show, and a large Mantis puppet roaming the Garden. Our 22nd annual Bug Day offers a variety of bug-themed booths and STEAM (science, technology, engineering, arts, math) activities, interactive exhibits, and hands-on learning available for learners of any age. There will also be live music from 12-2p, food trucks, and The VW Bug car show – a unique display that combines classic cars with bug-themed excitement – and you can vote for your favorite creation!

Arboretum Foundation – Fall Plant Sale (Seattle, WA)

This year, our fall plant sale will return as a single-day event! The Pat Calvert Greenhouse will be open from 10 a.m. to 2 p.m. while volunteers from the Cloney-Harris Plant Nursery will be on site from 10 a.m. to noon. The plant sale will coincide with the grand public opening of John Grade’s large-scale sculpture, Union, in the Arboretum. More details coming soon!

Rhododendron Species Botanical Garden – Fall Foliage Festival (Federal Way, WA)

Celebrate autumn at our Fall Foliage Festival that features tours, plant talks, and plant sales. Admission is FREE!

Bellevue Botanical Garden – Great Tree Lecture (Bellevue, WA)

Taught by Laura Watson in partnership with the Master Gardeners of King County. Using great photos and a friendly speaking style, Laura will describe her personal experiences living with ten great understory trees for the Pacific Northwest, all but one of which are listed on Great Plant Picks and included in The Tree Book by Michael Dirr and Keith Warren. Attendees will receive an informative list of great trees to try that includes cultural information. $10.50 BBGS & King County Master Gardener Members/$15 Non-Member.

Oregon Garden – Digging in the Dirt (Silverton, OR)

Each year, The Oregon Garden’s horticulture staff grows tens of thousands of annuals to be enjoyed by our visitors! Help us kick off the spring planting season and leave your mark on the Garden when you spend the morning planting annuals with us. Your work is rewarded with a bottomless mimosa bar, brunch buffet, live music and a bag full of goodies to take home!

Mount Pigsah Arboretum – Mushroom Festival (Eugene, OR)

In partnership with the Cascade Mycological Society and Lane Community College, Mount Pisgah Arboretum is excited to present the 2023 Mushroom Festival. Tickets will be by pre-sale only, opening in late-September. Festival Activities: A Huge Mushroom exhibit, Edible and Poisonous Mushrooms Display, Live Music, Guided Nature Walks by local naturalists, Mushroom Vendors, Kids’ Activities and Hayrides

Leach Botanical Garden – Feast in the Garden (Portland, OR)

Join us for a festive and magical evening of food and drink featuring celebrated chef Joshua McFadden. Enjoy music, hors d’oeuvres, and cocktails while strolling through the Upper and Lower Gardens before feasting on a multi-course family style dinner on the East Terrace of Leach’s gracious Manor House. All attendees will also receive a complimentary copy of Joshua McFadden’s James Beard Award-winning cookbook Six Seasons: A New Way with Vegetables.

Hoyt Arboretum – Fall Mushroom Discovery (Portland, OR)

Discover the fascinating and fun world of mushrooms! The program will start with an indoor introduction to the ecological roles of fungi, their forms, how they eat, reproduce and the basics of identification. The talk will be followed by a casual walk outdoors on the Arboretum trails to carefully observe and explore the species commonly found at Hoyt and in the Pacific Northwest during the fall season! See mushrooms in their natural habitat and start practicing those new fall mushroom ID skills!

Hoyt Arboretum – Forest Bathing (Portland, OR)

Experience a two-hour guided forest bathing walk through Hoyt Arboretum’s unique tree collection and forested areas. Forest Bathing (also known as Forest Therapy) offers many health benefits from stress relief to immune system and mood support. Registration closes Friday, September 15th at 4:00pm