10 a.m. Tue, Forest Oaks Government Plaza, 7479 Forest Oaks Blvd., Spring Hill. Coax azaleas to colorful spring blooms in Florida-Friendly Gardening class. Free on first-come, first-seated basis. (352) 754-4433.
Herb Fest: 8 a.m.-1 p.m. today, Pinellas County Extension Service, 12520 Ulmerton Road, Largo. Herb plants for sale, demonstrations on growing, cooking, drying and storing; using herbs and spices in skin care and nutrition; benefits of herbal teas; how to grow an edible flower garden. Free "Wonderful World of Herbs'' program, 10 a.m.-11 a.m. Tour herb garden, make herb treat; (727) 582-2673 to register for program. Free admission. (727) 582-2100.
Wetlands Nature Walk: 9-10:30 a.m. today, John Chesnut Sr. Park, 2200 East Lake Road, Palm Harbor. Discover plants found in wetlands and pine flatwoods and how they have been used in the past for medicinal and other purposes. Free, but registration required. (727) 669-1951.
Brooker Creek Guided Hike: 9-11 a.m. Saturday, Brooker Creek Preserve Environmental Education Center, 3940 Keystone Road, Tarpon Springs. Along the center's; for adults and youths age 7 and older. Free. (727) 453-6800.
Weedon Mangrove Hike: 9-11 a.m. Saturdays, Weedon Island Preserve Cultural and Natural History Center, 1800 Weedon Drive NE, St. Petersburg. Guided hike through coastal mangrove and upland ecosystems. For adults and youths age 6 and older. (727) 453-6500.
Nature Walk: 10-11 a.m. today-Sun., Fort De Soto Park, 3500 Pinellas Bayway S, Tierra Verde. Explore park in family nature walk. Free, but pre-registration required. (727) 582-2267.
Uplands Ecosystems: 12:30-3:30 p.m. Sun., Weedon Island Preserve Cultural and Natural History Center, 1800 Weedon Drive NE, St. Petersburg. Learn about native plant habitats in local ecosystem, and historical changes in Weedon's landscape, in seminar for adults. Free, but registration required. (727) 453-6500.
Caring for Camellias: 10 a.m. Tue., Charles Fendig Public Library, 3903 W Neptune St., Tampa. Master gardener plant clinic on camellia care. Free. (813) 744-5519, ext. 105.
Trees in the Landscape: 2-4:30 p.m. Tue., Manatee County Extension Office, 1303 17th St. W, Palmetto. Landscape Makeover class focuses on using trees to balance design, and identifying common trees. Free, but registration required. (941) 722-4524 or (941) 742-5986.
Rosemary and Lavender: 6 p.m. Tue., Clearwater Main Library, 100 N Osceola Ave. Florida Herb Society meets; tips on growing rosemary and lavender, and uses for the fragrant herbs. (727) 393-3943 or (727) 447-6305.
Prune Like a Pro: 7 p.m. Tue., Temple Terrace Library, 202 Bullard Parkway, Temple Terrace. Learn to prune plants, trees and shrubs to encourage new growth, in master gardener plant clinic. Free. (813) 744-5519, ext. 105.
All About Violets: 10 a.m. Wed., City Hall, 444 Causeway Blvd., Belleair Beach. Belleair Beach Island Garden Club meets with program "All About African Violets"; plants for sale; bring problem violets for diagnosis; lunch by Columbia Restaurant available for $9; reserve by Mon. (727) 517-3618.
Blue Ribbon Bouquets: 11 a.m. Wed., Dunedin Public Library, 223 Douglas Ave. Bay Bouquet Garden Club meets; advice on grooming winning floral show entries. (727) 734-2058.
Changing Habitats: 7-8 p.m. Wed., J.B. Starkey Wilderness Park, 10500 Wilderness Park Blvd., New Port Richey. Swiftmud's Mary Barnwell discusses how Florida's uplands habitats have been changed by development and current efforts to restore them; at Environmental Education Center in the park. Free. (727) 834-3474.
Natural Landscapes: 7 p.m. Wed., Hillsborough County Extension Office, 5339 CR 579, Seffner. Suncoast Native Plant Society meets with program on developing a native landscape plan for your yard that thrives with minimum care. (727) 960-8132.
Flea Market, Plant Sale: 5-7 p.m. Thur.; 9 a.m.-3 p.m. Fri.; 9 a.m.-1 p.m. Feb. 23, Garden Club of St. Petersburg Garden Center, 500 Sunset Drive S. Plants, garden treasures, flea market finds; benefits Garden Club of St. Petersburg. $5 Thur. (includes refreshments), free admission Fri. and Feb. 23. (727) 391-2526.
Trees & Landscape Course: 8:30 a.m.-4 p.m. Fri., Florida State Fairgrounds, Interstate 4 at U.S. 301 N, Tampa. Extension Service short course on tree care, new palm diseases, watering requirements, African honey bees, and other landscape issues; includes lunch, admission to Wholesale Growers Spring Expo trade show. $40 till Feb. 21, $45 day of event. (813) 744-5519, ext. 103, to register. www.floridastatefair.com.
Festival of Arts Art and Floral Competition and Show: 10 a.m.-5 p.m. Fri.; 10 a.m.-3 p.m. Feb. 23, Largo Community Center, 65 Fourth St. NW. Paintings and floral design by local and visiting artists, including classic floral design and Ikenobo ikebana. Free. (727) 518-3131.
Philippe Nature Walk: 9-10:30 a.m. Feb. 23, Philippe Park, 2525 Philippe Parkway, Safety Harbor. Explore one of Pinellas County's oldest parks in guided nature walk; wear sunscreen, hat, insect repellent. Free, but registration required. (727) 669-1947.
Violet Show & Sale: 10 a.m.-5 p.m. Feb. 23; noon-5 p.m. Feb. 24, Hillsborough County Farm Bureau, 100 S Mulrennan Road, Valrico. Tampa African Violet Society judged show and sale, with violets in array of colors and sizes, supplies for sale, advice from experts. Free admission. (813) 681-1910 or (813) 251-1581.
Asian Festival: 10 a.m.-5 p.m. Feb. 23-24, Marie Selby Botanical Gardens, 811 S Palm Ave., Sarasota. Festival includes bonsai and ikebana flower arrangement displays and demonstrations, sumi-e painting, taiko drummers, cultural demonstrations and foods; $12; children 6-11, $6; under 6 and members free. (941) 366-5731. selby.org.
Discovering Nature with Your Child: 11 a.m.-3 p.m. Feb. 24, Brooker Creek Preserve Environmental Education Center, 3940 Keystone Road, Tarpon Springs. Self-guided nature games and activities. For families with children of all ages. (727) 453-6800.
How "Green" is Your Yard? 10 a.m. Feb. 26, Forest Oaks Government Plaza, 7479 Forest Oaks Blvd., Spring Hill. Florida-Friendly Gardening class on applying "green" principles to yard and home. Free on first-come, first-seated basis. (352) 754-4433.
Pinellas County Market in the Park: 8 a.m.-1 p.m. Saturdays, Pinellas County Extension Service, 12520 Ulmerton Road, Largo. (727) 582-2100.
St. Petersburg Saturday Morning Market: 9 a.m.-2 p.m. Saturdays, along Central Avenue between First and Second streets. (727) 455-4921. www.saturdaymorningmarket.com.
Produce Market at the Mustang: 8 a.m.-4 p.m. Saturday and Sunday, Mustang Flea Market, 7901 Park Blvd., Pinellas Park. Free admission; $1 parking. (727) 544-3066.
Treasure Island Open Air Market: 9 a.m.-1 p.m. Fridays, Community Center, Gulf Boulevard and 106th Avenue. (727) 360-4121.
Largo Harvest Marketplace: 9 a.m.-3 p.m. Thursdays, Ulmer Park, 301 West Bay Drive, Largo. (727) 587-6740 ext. 5017.
Longleaf Farmer's Market: 3-6 p.m. Thursdays, Longleaf, Town Avenue and Starkey Boulevard, New Port Richey. (727) 375-8986.
Downtown Clearwater Farmers Market: 8 a.m.-1:30 p.m. Wednesdays, City Hall, 112 Osceola Ave., Clearwater. (727) 461-7674.
Send submissions to Garden Calendar, Newsfeatures, St. Petersburg Times, P.O. Box 1121, St. Petersburg, FL 33731, e-mail firstname.lastname@example.org, or fax (727) 892-2327. Deadline is two weeks before publication.