Brooker Trails Hike: 9-11 a.m. Saturdays, Brooker Creek Preserve, 3940 Keystone Road, Tarpon Springs. Along Environmental Education Center trails; for adults and youth ages 7 and older. Free. (727) 453-6800.
Weedon Mangrove Hike: 9-11 a.m. Saturdays, Weedon Island Preserve, 1800 Weedon Drive NE, St. Petersburg. Through coastal mangrove and upland ecosystems. For adults and youth ages 6 and older. Free. (727) 453-6500.
Turf Alternatives: 10 a.m. today, Hernando County Cooperative Extension Service, 19490 Oliver St., Brooksville. Extension Service class on a range of ground cover alternatives to a high-maintenance turf lawn. Free, but registration is requested. (352) 754-4433.
Container Gardens: 10 a.m. today, Savanna's Nursery, 2601 34th St. S, St. Petersburg. Learn how to create a colorful container garden for patio, balcony or other small space. Free, but registration is required. (727) 864-6344.
Easy Begonia Care: 10:30 a.m. today, Famous Tate Distribution Center, 6401 N 54th St., Tampa. Begonia Society of Tampa Bay meets with program on solving common growing problems for easy begonia care; first-time visitors receive free begonia plant. (813) 838-0374.
Phalaenopsis Care: 11:30 a.m. today, Sunken Gardens, 1825 Fourth St. N, St. Petersburg. Orchid expert Michael Polen shows how to care for phalaenopsis orchids. Included with admission. (727) 551-3102.
Home Invaders: 1-2 p.m. today, Brooker Creek Preserve, 3940 Keystone Road, Tarpon Springs. Learn about the spiders, roaches, mice and other creatures that invade the home, and how they thrive on home dwellers' habits. For adults and ages 10 and up; registration required. Free. (727) 453-6800.
Orchids Abound: 6:45 a.m.-4 p.m. Sun., Florida Native Orchids, 6820 Second St. N, St. Petersburg. Thousands of orchids, hybrids, seedlings, tropicals, native plants, bromeliads, supplies; demonstrations on orchid mounting and repotting. The "Orchid Doctor" and other experts help with orchid culture advice. Closed today to prepare for event. (727) 527-2821. floridanativeorchids.com.
Flower & Garden Festival: Through June 1, Walt Disney World, Lake Buena Vista. "Great American Gardeners" talks include "Saving Space," creating small, intimate gardens in limited space, with Melinda Myers, today-Sun.; "Integrating Nature, Inside and Out," with Jon Carloftis, May 31-June 1; surfin' Goofy, plus Mickey and Minnie at the beach among 70 large topiaries; Peter Pan's Neverland Garden; rose, fragrance, butterfly, outdoor-living gardens; 30-million blooms. Included in Epcot admission: $71 plus tax adults, $60 plus tax ages 3-9. Discounts for Florida residents. (407) 934-7639. www.disneyworld.com/flower.
Discovery Tour: 1-2:30 p.m. Sun., Florida Botanical Gardens, 12520 Ulmerton Road, Largo. Tour the garden areas. Free, but registration is required. (727) 582-2581.
Home Composting: 10 a.m. Tue., Forest Oaks Government Plaza, 7479 Forest Oaks Blvd., Spring Hill. Learn basics of home composting at Hernando County Extension Service class. Free on first-come, first-seated basis. (352) 754-4433.
Rare Plant Auction: 7:30-9:30 p.m. Tue., inside annex building at 6045 Park Blvd., Pinellas Park. Unusual and hard-to-find plants at bargain prices at Rare Plant Network's spring plant auction; cash only. (727) 541-4082.
Forest Steward Program: Begins 6 p.m. Thur., Hillsborough County Extension Office, 5339 CR 579, Seffner. Training course (32 hours) through June 26, for volunteers interested in maintaining and protecting community forest and woodland areas; topics include tree identification, care and maintenance, forestry planning. Participants serve 30 volunteer hours after certification. $50. (813) 744-5519, ext. 104.
Explore Fort De Soto: 10-11 a.m. May 31, Fort De Soto Park, 3500 Pinellas Bayway S, Tierra Verde. Nature walk, suitable for families, explores different areas of the park. Registration required. Free. (727) 582-2267.
Plant Totems: 11:30 a.m. May 31, Sunken Gardens, 1825 Fourth St. N, St. Petersburg. Linda Worle shows how to make a plant totem to take home. Registration required. $45, $35 members. (727) 551-3102.
Break It Down: 1-2 p.m. May 31, Brooker Creek Preserve, 3940 Keystone Road, Tarpon Springs. Learn how the decomposers of dead plants and animals break them down. For adults and ages 10 and up. Free, but registration is required. (727) 453-6800.
St. Petersburg Saturday Morning Market: 9 a.m.-2 p.m. Saturdays through May 31, along Central Avenue between First and Second streets. (727) 455-4921. www.saturdaymorningmarket.com.
St. Pete Beach Fresh Market: 9 a.m.-2 p.m. Wednesdays, St. Pete Beach Community Center, 7701 Boca Ciega Drive, St. Pete Beach. (727) 363-9245.
Produce Market at the Mustang: 8 a.m.-4 p.m. Saturdays and Sundays, Mustang Flea Market, 7901 Park Blvd., Pinellas Park. Free admission; $1 parking. (727) 544-3066.
Downtown Clearwater Summertime Marketplace/Clearwater Farmer's Market: 9 a.m.-1 p.m. Wednesday and June 25, July 30, Aug. 27, Sept. 24, Oct. 29, downtown, between Cleveland and Pierce streets on Osceola Avenue. (727) 461-7674 clearwaterfarmersmarket.com.
Ybor City Saturday Market: 9 a.m.-1 p.m. (summer hours through September) Saturdays, Centennial Park, Eighth Avenue and 18th Street, Ybor City. (813) 241-2442 or yborfreshmarket.citysearch.com.
Sweetwater Sunday Organic Market: noon-4 p.m. Sundays through May, 6942 W Comanche Ave., Tampa. (813) 887-4066. www.sweetwater-organic.org.
Send submissions to Garden Calendar, Newsfeatures, St. Petersburg Times, P.O. Box 1121, St. Petersburg, FL 33731; e-mail to email@example.com, or fax (727) 892-2327. Deadline is two weeks before publication.