Events are free unless noted. Please email calendar submissions at least three weeks in advance to events@oregonian.com.
ONGOING
Walk With a Friend at Tualatin Hills Nature Park: 9 a.m. first Wednesday and third Sunday of the month. Take a guided walk and learn about the plants, wildlife and history of the park. Tualatin Hills Nature Park, 15655 S.W. Millikan Way, Beaverton; thprd.org.
What’s New Garden Tour: 10:30-11:30 a.m. second Thursday of the month. Learn about the Leach Botanical Garden’s history, new additions, heritage trees, seasonal plants, habitat restoration and more. $5; Leach Botanical Garden, 6704 S.E. 122nd Ave.; leachgarden.org.
East Multnomah Soil & Water Conservation District free webinars: Discover how to care for land in ways that benefit people, water and wildlife. From stormwater solutions to biochar to water conservation, these workshops will help you save time, money and energy. Register at emswcd.org/workshops-and-events/upcoming-workshops.
Greater Prtland Iris Society meeting: 7 p.m. first Tuesday of the month in March, April, September, October and November. Enjoy discussions of irises with guest speakers. Ainsworth House, 19130 Lot Whitcomb Drive, Oregon City; greaterportlandirissociety.org.
Happy Valley Garden Club monthly meeting: 9 a.m.-noon second Tuesday of the month. Happy Valley Baptist Church, 14095 S.E. King Road, Happy Valley.
Ikebana for Every Season: 1-2:30 p.m. second Tuesday of the month; $45. Become knowledgeable about basic concepts, techniques, tools, equipment and care for ikebana. The Resource Center, 219 S. Main Ave., Gresham; GreshamJapaneseGarden.org.
Portland Dahlia Society monthly meeting: 7 p.m. second Tuesday of the month February through November. Take part in a discussion of seasonal topics. Oaks Park Dance Pavilion, 7805 S.E. Oaks Park Way; portlanddahlia.com.
Estacada Garden Club monthly meeting: 1-3 p.m. second Thursday of the month. Estacada Public Library, 825 N.W. Wade St.
WEDNESDAY, NOV.
Rainwater Harvesting: 6-7 p.m. This webinar discusses different ways to capture rainwater. Tualatinswcd.org.
Grow Your Own Produce: The Workshop Series: (online via Zoom) 6-8 p.m. Take part in a series taught by permaculture expert Marisha Auerbach featuring seasonal information about planning, growing, maintaining and harvesting food from your garden. $25; permaculturerising.com or email marisha@fertileground.org; register at eventbrite.com.
Trees: Up Close and Personal: 6-8 p.m. Learn about the fascinating role of a tree’s canopy, trunk and underground networks for the tree and for the planet. $30; Leach Botanical Garden, 6704 S.E. 122nd Ave.; leachgarden.org.
THURSDAY, NOV. 2
Week of Lights: 4-8 p.m. Nov. 2 (Sherwood), 4-8 p.m. Nov. 3 (Gresham), 4-8 p.m. Nov. 4 (Wilsonville) and 1-5 p.m. Nov. 5 (Woodburn). Get holiday inspiration with festive décor and celebrate the season with homegrown poinsettias, live music, food, beverages and more. als-gardencenter.com.
FRIDAY, NOV. 3
Foundations of Irrigation Design: 8 a.m.-4:50 p.m. Nov. 3-4. This two-day beginner course focuses on designing a simple residential or small commercial system. Topics include gathering site information, calculating system capacity, soil-water-plant relationships, pipe sizing, hydraulics, head layout, uniformity, zoning and plan presentation. $160 registration at bit.ly/horteventbrite; Clackamas Community College, 19600 Molalla Ave., Oregon City; email lorettam@clackamas.edu for more information.
Chrysanthemum Festival: 10 a.m.-4 p.m. Nov. 3-19. Take part in floral art workshops, plant cultivation talks and horticulture tours and delight in the garden adorned with chrysanthemums. $14; Lan Su Chinese Garden, 239 N.W. Everett St.; lansugarden.org.
SATURDAY, NOV. 4
Hand-built Nature Mugs: 9:30-11:30 a.m. $50 registration and more information at hoytarboretum.org; Hoyt Arboretum, 4000 S.W. Fairview Blvd.
Portland Chrysanthemum Society Annual Show: 1-5 p.m. Nov. 4 and 10 a.m.-4 p.m. Nov 5. The society will present horticultural displays of exhibition blooms and artistic floral designs. Clackamas Community Club, 15711 S.E. 90th Ave., Clackamas; email Tamara@mums.org or visit Facebook.com/PortlandChrysanthemumSociety for more information.
Vancouver Chrysanthemum Society Annual Show: 2-5 p.m. Nov. 4 and 11 a.m.-4 p.m. Nov. 5. See prize-winning exhibition, floral, bonsai style and garden variety mums. Hudson’s Bay High School, 1601 E. McLoughlin Blvd., Vancouver; mums.org/washington.