ORCHID SHOW & SALE: The Florida West Coast Orchid Society's annual show and sale is noon to 4 p.m. Oct. 3, and 10 a.m. to 4 p.m. Oct. 4 and 5 at the The Honeywell MinReg Building, 6340 126th Ave. Largo. Questions? Call Brent Finke at (727) 460-4606.
NATIVE PLANTS SALE: Pick up native plants and attend workshops at the Fall for Florida Native Plants Sale from 9 a.m. to 3 p.m. Oct. 4 at Brooker Creek Preserve, 3940 Keystone Road, Tarpon Springs. Admission is free. Call (727) 453-6800 for a schedule of activities.
KNOW YOUR BUTTERFLIES: Identify the butterflies in your garden and help with the Fall Butterfly Count by taking the Fall Butterfly Identification Seminar from 7 to 8 p.m. today at Weedon Island Preserve, 1800 Weedon Drive, N.E., St. Petersburg. This is an adult-oriented class but suitable for ages 12 and older. Call (727) 453-6500 to sign up. The butterfly count is 9:30 a.m. to 1 p.m. Saturday at the preserve.
WATER-WISE WORKSHOP: Learn how to reduce water consumption in the landscape and leave with a free micro-irrigation kit (non-Hillsborough residents pay $20 for the kit). The workshop is from 10:30 a.m. to noon today; 10 a.m. to 11:30 a.m. Oct. 28; and 11 a.m. to 12:30 p.m. Nov. 19 at Hillsborough County Extension, 5339 County Road 579, Seffner. Registration required; call (813) 744-5519, ext.144.
FALL VEGETABLE GARDENING: Get information you need to start your own garden during a workshop at 10 a.m. Saturday at Kerby's Nursery & Landscaping, 2311 S. Parsons Ave., Seffner; (813) 685-3265. Admission is free.
WICKED WEED WORKSHOP: Learn how to rid your yard of invasive, exotic plants; bring in mystery plants for identification, and get advice on weed control from 10:30 a.m. to noon Saturday at Weedon Island Preserve, 1800 Weedon Drive, N.E., St. Petersburg. Admission is free; this class is best for adults. Call (727) 453-6500 for information.
BEGONIAS WORKSHOP: Learn how to grow and propagate begonias and bring some home from 7 to 8:30 p.m. Wednesday at the Bloomingdale Library, 1906 Bloomingdale Ave., Valrico. Call (813) 244-3637 for information.
MICRO-IRRIGATION RETROFIT WORKSHOP: Learn how to convert a traditional irrigation system into a water-efficient micro-irrigation system. Hillsborough County residents will receive one free retrofit kit per household; others pay $20. It's 7 to 8:30 p.m. Oct. 16 at Tampa Garden Club, 2629 Bayshore Blvd., Tampa. To register, call (813) 744-5519, ext. 144 or e-mail CarverMS@Hills boroughCounty.org.
POND LANDSCAPING: Pondscapes, 4213 S. Manhattan Ave., Tampa, hosts a free pond-building class at 9 a.m. the last Saturday of the month. Call (813) 839-8062.
BIRD FEEDING: Wild Birds Unlimited, 13140 N. Dale Mabry Highway, Tampa, offers free backyard bird-feeding classes at 9 a.m. on the first Saturday monthly of each month. For information, Call (813) 961-2772.
BEGONIA SOCIETY OF TAMPA BAY: Learn the nine steps to a Florida yard during the meeting at 10:30 a.m. Saturday at the Tate Distribution Center, 6401 N. 54th St. Call Jeanette Hall at (813) 779-7641 for information.
VILLAGE GARDEN CIRCLE: Take part in a design workshop creating items to be sold at the November Holiday Market. The group meets at 10 a.m. Wednesday. Call (813) 962-7150 for directions.
FLORIDA WEST COAST BROMELIAD SOCIETY: Harry Luther from Marie Selby Gardens discusses bromeliad habitats in Brazil at 7:30 p.m. Oct. 7 at Hope Presbyterian Church, 1698 S. Belcher Road in Clearwater. Non-Presbyterians are more than welcome. Call (727) 544-9187 for details.