Garden shows and tours

Arboretum tour and tea

THU Tour and tea and 20 percent off plants in garden center, 1-4 p.m. today, South Seattle Community College, 6000 16th Ave. S.W., Seattle; free (206-768-6873 or www.southseattle.edu).

Fern Festival

FRI, SAT Plant sale with ferns, natives and other companion plants, 1-6:30 p.m. Friday, 10 a.m.-2 p.m. Saturday; Hardy Fern Foundation meeting, 6:30 p.m., lecture, 7:30 p.m. Friday; demonstration of fern-propagation techniques, 11 a.m. Saturday, Center for Urban Horticulture, 3501 N.E. 41st St., Seattle (425-454-4467).

Point Defiance Flower and Garden Show

FRI, SAT, SUN Display gardens, educational exhibits, lectures, children's activities, bus tours, food court, wine and beer gardens, arts and crafts vendors, plant sale, farmers market, 10 a.m.-6 p.m. Friday and Saturday, 10 a.m.-5 p.m. Sunday, Point Defiance Park, 5400 N. Pearl St., Tacoma; $12/advance, $15/at the door, $5/children, $20/two-day pass, ages 10 and younger free Sunday (253-305-1008 or www.ptdefianceflowershow.com).

Queen Anne and Magnolia garden tour

SAT Seattle Pacific University tour of campus gardens and six Queen Anne and Magnolia residential gardens; 10 a.m.-4 p.m., Upper Gwinn Commons, Seattle Pacific University, Seattle; $18/advance-$20 day of tour (206-281-2138 or www.spu.edu/gardentour).

Real People's garden tour

SAT Piper's Creek watershed self-guided tour of watershed-friendly gardens, 10 a.m.-3 p.m., Carkeek Park Environmental Learning Center, 950 N.W. Carkeek Park Road, Seattle; free (206-684-0877 ).

SAT Create a hummingbird habitat, 1 p.m. Saturday, Emery's Garden, 2829 164th St. S.W., Lynnwood; free (425-743-4555 or www.emerysgarden.com ).

Dahlias

SAT Learn about growing dahlias and help plant a community dahlia bed, 9 a.m. Saturday, Pickering Barn classroom, 1730 10th Ave. N.W., Issaquah; free, preregister (425-837-3442).

Wallingford garden tour

SUN Self-guided tour of 10 neighborhood gardens, 10 a.m.-4 p.m., Seattle; $10 (206-632-3165 or www.wallingford.org).

Vashon Sustainable

Garden Tour

SUN Tour seven farms that grow organic fruits, vegetables and nuts; pasture-raised goats, chickens and ducks; use worm bins and rain-barrel water systems, 11 a.m.-4 p.m. Sunday, Vashon Island; $5 (206-463-1725).