Calendar

This week

Bearded iris sale: The King County Iris Society’s annual bearded iris sale, 10 a.m. to 6 p.m. Aug. 20, Crossroads Bellevue Shopping Center, Bellevue; 425-868-2770, www.kcis.org.

Dahlia show: The annual event features award-winning dahlias, sponsored by the Snohomish County Dahlia Society, 1 to 6 p.m. Aug. 20, 10 a.m. to 4:30 p.m. Aug. 21, free. Floral Hall, Forest Park, 802 Mukilteo Blvd., Everett.

Lavender Hills Farm: Farm open 10 a.m. to 5 p.m. Thursdays through Sundays through Aug. 28. 7508 108th St. NE, Marysville; 360-651-2086.

Sky Nursery: Free classes offered. 18528 Aurora Ave. N., Shoreline; 206-546-4851.

* Fall and winter vegetables, 1 to 2 p.m. Aug. 21.

Swanson’s Nursery: Seminars and classes offered. Registration suggested. 9701 15th Ave. NW, Seattle; 206-782-2543, ext. 235, www.swansonsnursery.com.

* Container camp, hands-on workshop, 1 p.m. Aug. 21, fee is cost of materials.

Coming up

Private tour: Tour Marty Wingate’s private garden, 10 a.m. to 2 p.m. Aug. 27, $10, $8 PlantAmnesty members; 206-178-9813, www.plantamnesty.org.

Dahlia show: Seattle Dahlia Society annual show, 12:30 to 5 p.m. Sept. 3 and noon to 5 p.m. Sept. 4. Country Village, 23732 Bothell-Everett Highway, Bothell; 206-546-1522, www.countryvillagebothell.com.

Fall plant sale: The Friends of the Conservatory’s annual fall plant sale, 10 a.m. to 3 p.m. Sept. 10, Volunteer Park Conservatory, 1400 E. Galer, Seattle; 206-322-4112, www.volunteerparkconservatory.org.

Washington Koi &Water Garden Society koi show: Annual fall show of koi and backyard water gardens, 10 a.m. to 6 p.m. Sept. 10, 10 a.m. to 2 p.m. Sept. 11. Country Village, 23732 Bothell-Everett Highway, Bothell; 425-483-2250, www.washingtonkoi.org.

Snohomish Historical Society Home Tour: A tour of private vintage homes and public structures, noon to 5 p.m. Sept. 18. Various locations, Snohomish; 360-568-5235.

Sky Nursery: Free classes offered. 18528 Aurora Ave. N., Shoreline; 206-546-4851.

* 13th annual fall gardening day, Sept. 10.

* The odd plant show and sale, all day Sept. 10 and 11.

* Fear of houseplants, 11 a.m. Sept. 17.

* Orchid basics, 11 a.m. Sept. 24.

* Fall is for planting, 2 p.m. Sept. 24.

* Orchid maintenance and repotting, 11 a.m. Oct. 1, $1 for repotting.

* Bulbs for spring beauty, 11 a.m. Oct. 8.

* Basics of indoor bonsai, 11 a.m. Oct. 22.

* Forcing bulbs for indoor beauty, 11 a.m. Oct. 29.

Swanson’s Nursery: Seminars and classes offered. Registration suggested. 9701 15th Ave. NW, Seattle; 206-782-2543, ext. 235, www.swansonsnursery.com.

* A vibrant garden by design, 11 a.m. Aug. 27.