Dates and times are subject to change. Call ahead to confirm. Oct. 21 — 27 Pick a Pumpkin TODAY Pumpkin-picking, wagon rides, activities...

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Dates and times are subject to change. Call ahead to confirm.

Oct. 21 — 27

Pick a Pumpkin

TODAY Pumpkin-picking, wagon rides, activities for kids and more. Proceeds benefit Children’s Hospital and Regional Medical Center, 11 a.m.-4 p.m., Juntunen Farm and Gardens, 18091 Burkland Road, Mount Vernon; $10 suggested donation (360-416-6650).

Classes

Dried-flower art

TODAY Turn dried flowers and other plant materials into a work of art, 1-4 p.m., South Seattle Community College, 6000 16th Ave. S.W., Seattle; $45 (206-764-5339 or www.learatsouth.org).

Northwest Perennial Alliance

TODAY Gardeners of all levels invited for hands-on experience with perennials, 11 a.m.-3 p.m., Bellevue Botanical Garden, 12001 Main St., Bellevue; free (206-354-7010).

Master Gardener Talk: Dahlias

TODAY King County Master Gardener Foundation Talk series welcomes Ralph Dines, discussing dahlias, 10:30 a.m., Master Gardener Demonstration Garden, 15500 S.E. 16th St., Bellevue; free (206-205-3122).

Dwarf conifers

TODAY Expand your garden palette with small-to-medium-growing needled evergreens with a wide range of forms and foliage colors, 11 a.m., Emery’s Garden, 2829 164th St. S.W., Lynnwood; free (425-743-4555 or www.emerysgarden.com).

“Fall into Winter”

SAT Carrie Becker, local plant expert and co-creator of the Bellevue Botanical Garden Perennial Border, talks on shrubs and perennials that will provide fall and winter interest in the garden, 11 a.m., Swansons Nursery, 9701 15th Ave. N.W., Seattle; free (206-782-2543, ext. 238, or www.swansonsnursery.com).

Backyard Invasions: Noxious Weeds in Seattle’s Greenspaces

SAT Learn how invasive and noxious weeds spread, where they come from, and what communities can do to stop them from spreading any farther, 1:30-3 p.m., Northgate Community Center, 10510 Fifth Ave. N.E., Seattle; free (registration: 206-386-4283).

Putting the garden to bed

SUN Learn inexpensive ways to replenish soil and prepare for next spring, 11 a.m.-12:30 p.m., Bradner Gardens Park, 29th Ave. S. and S. Grand St., Seattle; $15-$18 (registration: www.seattletilth.org.)

Heaths and heathers

SUN Learn how to select and grow these plants for virtual year-round color accents, 1 p.m., Emery’s Garden, 2829 164th St. S.W., Lynnwood; free (425-743-4555 or www.emerysgarden.com).

Halloween-party centerpiece

THU Design ideas and decoration tips, party ideas and techniques in the art of frightful decorating, 6:30-8:30 p.m., Floral Design Institute, 911 Western Ave. Suite 575, Seattle; $55 (registration: 206-749-9464 or www.floraldesigninstitute.com).

Tours

Japanese Garden

SAT The Japanese Garden is full of color for maple-viewing, entertainment, crafts, stories and education, 11 a.m.-3 p.m., The Japanese Garden, 1075 Lake Washington Blvd., Seattle; $3-$5 (206-684-4725 or www.seattle.gov/parks/parkspaces/japanesegarden.htm).

Fall colors in the garden walk

TODAY Educational and recreational walk through La Conner Flats with examples of great plant design and fall color, 1-2 p.m., Christianson’s Nursery and Greenhouse, 15806 Best Road, Mount Vernon; free (800-585-8200 or www.christiansonsnursery.com).

Arboretum

ONGOING Guided walks of the Washington Park Arboretum led by trained volunteers to highlight the plant collections, seasonal beauty and history of the arboretum, 1 p.m. first and third Sundays, Washington Park Arboretum, 2300 Arboretum Drive E., Seattle; free (206-543-8800 or www.wparboretum.org).

Seattle Chinese Garden

ONGOING 90-minute tour includes a slide show and discussion of gardens in Chinese culture, and a tour of the arboretum and Song Mei Pavilion, 10 a.m. second Saturdays, South Seattle Community College Horticulture Building, 6000 16th Ave. S.W., Seattle; free (206-282-8040, Ext. 101 or www.seattle-chinese-garden.org).

Dunn Gardens

THU-SAT Restored 1915 Olmsted Brothers-designed private garden open to the public for guided tours only, 1 p.m. Thursdays, 10 a.m. and 1 p.m. Fridays and 10 a.m. Saturday through October, address provided with tour reservation, Seattle; $7-$10 (206-362-0933 or www.dunngardens.org).

Ongoing

Washington Park Arboretum

TUE, WED 10 a.m.-noon Tuesdays throughout the year, and sale of donated plants, 10 a.m.-2 p.m. Wednesdays and second Saturdays through October, areas near the Graham Visitors Center, 2300 Arboretum Drive E., Seattle (206-325-4510 and www.arboretumfoundation.org)

Elisabeth C. Miller Library

MON-SAT 9 a.m.-8 p.m. Mondays, 9 a.m.-5 p.m. Tuesdays-Fridays, 9 a.m.-3 p.m. Saturdays, tours available 7 p.m. first Mondays, Center for Urban Horticulture, 3501 N.E. 41st St., Seattle; free (206-543-0415 or www.millerlibrary.org).

Bloedel Reserve

WED-SUN 150-acre estate includes 84 acres of forest, Japanese garden, waterfall, azaleas and a visitor center, 10 a.m.-4 p.m. Wednesday through Sunday with admission by reservation only; 7571 N.E. Dolphin Drive, Bainbridge Island; $6-$10 (206-842-7631 or www.bloedelreserve.org).

Lakewold Gardens

WED-SUN 10-acre estate offers self-guided walking tour of rose, woodland, rhododendron gardens, waterfall, statuary and architecture by Thomas Church; garden store; 10 a.m.-3 p.m. Oct. 1 through March 31, 12317Gravelly Lake Drive S.W., Lakewood, Pierce County; $3-$5 (253-584-4106 or www.lakewold.org).

Pacific Rim Bonsai Collection

SAT-WED Guided tours, noon Sundays, other days by appointment, self-guided tours during regular hours, 11 a.m.-4 p.m. Saturdays-Wednesdays, Weyerhaeuser campus, 33663 Weyerhaeuser Way S., Federal Way; free (253-924-3153 or www.weyerhaeuser.com/bonsai).

Rhododendron Species

Botanical Garden

SAT-WED Guided tours available for groups of 15 or more with advance registration. The 22-acre woodland garden features more than 10,000 rhododendrons, perennials, flowering trees, shrubs and ponds, 11 a.m.-4 p.m. Saturdays-Wednesdays, Weyerhaeuser campus, 2525 S. 336th St., Federal Way; $2.50-$3.50 (253-661-9377 or www.rhodygarden.org).

Seattle Japanese Garden

DAILY 3-½-acre garden designed and constructed in 1960 under the direction of Japanese-garden designer Juki Iida; complimentary tours, 12:30 p.m. Mondays, Wednesdays, Saturdays and Sundays, and 2:30 p.m. Saturdays and Sundays, hours: 10 a.m.-7 p.m. daily, Washington Park Arboretum, 1075 Lake Washington Blvd. E., Seattle; $3-$5 (206-684-4725)

Campus Garden

DAILY Medicinal herb garden and reflexology path, open 24/7, Bastyr University, 14500 Juanita Drive N.E., Kenmore; free (425-602-3370).

Highline SeaTac Botanical Garden

DAILY 3-acre cottage-style garden featuring perennials, flowering shrubs and trees, with a stream and pond; private guided tours available, open daylight hours daily, North SeaTac Community Center, 13735 24th Ave. S., SeaTac; free (206-391-4003 or www.highlinegarden.org).

South Seattle Community College Arboretum

DAILY 6-acre garden maintained in part by Landscape Horticulture students, with a rose garden and a collection of rare dwarf conifers, dawn-dusk daily, 6000 16th Ave. S.W., Seattle; free (206-764-5396 or dept.seattlecolleges.com/arboretum).

Bellevue Botanical Garden

DAILY Diverse perennial borders, Japanese, alpine, water-wise and ground-cover gardens, with trails through woodlands and wetlands, open dawn-dusk daily, visitors center open 9 a.m.-4 p.m. daily, docent-led tours, 2 p.m. Saturday and Sundays through October and by appointment, 12001 Main St., Bellevue; free (425-451-3755 or www.bellevuebotanical.org).

Volunteer Park Conservatory

DAILY Rooms are kept between 72 and 80 degrees to suit the exotic bromeliads, palms, ferns and orchids, 10 a.m.-4 p.m. daily, docent-led tours, 11 a.m. and 1 p.m. Tuesdays Wednesdays, Thursdays and Saturdays, call two weeks in advance to schedule, 400 E. Galer St., Seattle; free admission and docent-led tours, $25 per group and free for k-12 student groups (206-684-4743 or www.volunteerparkconservatory.org).

Meerkerk Rhododendron Gardens

DAILY 10-acre garden and a 43-acre woodland preserve with trails; schedule guided tours in advance, 9 a.m.-4 p.m. daily, 3531 S. Meerkerk Lane, Greenbank, Whidbey Island; $5 (360-678-1912 or www.meerkerkgardens.org).

Kubota Garden

DAILY Open daylight hours; docent-led tours, 10 a.m. fourth Saturday, 55th Avenue South and Renton Avenue South, south entrance, Seattle; free (206-725-5060 and www.kubota.org).

Tacoma Nature Center

DAILY Nature-education programs, hands-on exhibits, native-plant nursery and interpretive center, preserve open dawn-dusk daily, visitor center open 8 a.m.-5 p.m. Tuesdays-Fridays, 10 a.m.-4 p.m. Saturdays, 1919 S. Tyler St., Tacoma; free (253-591-6439).

Parsons Garden

DAILY Seattle park, formerly a family garden, dawn to dusk daily, Seventh Avenue West and West Highland Drive, Seattle; free (206-684-4075).

Carl S. English Jr. Garden

DAILY Ornamental garden featuring a collection of exotic trees, shrubs and herbaceous plants, 6 a.m.-9 p.m. daily, Hiram M. Chittenden Locks, Lake Washington Ship Canal, Seattle; free (206-783-7001).

Work parties/volunteers

Arboretum tour guides

ONGOING Volunteers needed to lead adult and student tours and to provide visitor information. Training provided (information: 206-543-8801).

Seattle Tilth Programs

ONGOING Naturalist training to lead Earth Steward Garden Tours of the Children’s Garden, and garden-volunteer programs to help plant and maintain seasonal organic gardening displays, ongoing training, Seattle Tilth, Good Shepherd Center, 4649 Sunnyside Ave N., Seattle; free (information: 206-633-0451, ext. 2 or www.seattletilth.org).

Leschi Natural Area

SAT 9 a.m.-3 p.m. first Saturdays, 36th Avenue and East Terrace Street, Seattle (206-322-7648).

Lake Wilderness Arboretum

THU, SAT 40-acre arboretum managed and run by volunteers holds outdoor volunteers days, 9 a.m.-noon Thursdays and the first Saturday of the month, Lake Wilderness Arboretum Nursery, 22520 S.E. 248th St., Maple Valley (425-413-2572 or www.lakewildernessarboretum.org).

Volunteer Chore Services

DAILY Help low-income elderly or adults with disabilities throughout King County with gardening or yard work, choose day/time/location (888-649-6850).

Lakewold Gardens Estate

DAILY Flexible work schedule, 12317 Gravelly Lake Drive S.W., Lakewood, Pierce County (Amanda Bowens: 888-858-4106).

Dunn Gardens

DAILY Opportunity to become a docent and lead garden tours, includes training, classes and garden visits, times/dates vary, garden located in Broadview, Seattle (206-362-0933 or www.dunngardens.org).

Rhododendron Species Botanical Garden

DAILY Flexible work schedule, 2525 S. 336th St., Federal Way (253-838-4646 or www.rhodygarden.org).

Submissions to Garden Planner must be received at least three weeks before publication. E-mail gardencalendar@seattletimes.com, fax 206-464-2239, or mail to: Garden Calendar, Seattle Times, P.O. Box 70, Seattle, WA. 98111.