Retention ponds: Learn about retention pond purposes, best maintenance practices, common pollutants that feed algal growth in your pond and how to minimize them at this free Pasco Extension seminar from 9 to 10:30 a.m. Saturday at the Land O'Lakes Community Center, 5401 Land O'Lakes Blvd. (352) 518-0156.
Rain barrels: Learn to use a rain barrel to provide water to plant beds and vegetable gardens in a workshop from 5:30 to 6:30 p.m. Monday at the Hernando County Extension office, 1653 Blaise Drive, Brooksville. The cost is $65, which includes the hands-on workshop and a 65-gallon barrel. Registration and prepayment are required. (352) 540-6230.
Cover crops: Cover crops "solar-charge" soil and improve soil nutrients. In this seminar, learn reliable cover crop options for your region and cover crop planting methods from 5:30 to 6: 30 p.m. June 23 at the Hernando County Extension office, 1653 Blaise Drive, Brooksville. (352) 754-4433.
Hurricane prep: Learn how to prepare your landscape for hurricanes and other severe storms and how to prevent potential pollutants from entering our water resources in a Hernando Extension seminar from 10:30 to 11:30 a.m. June 25 at the Spring Hill Branch Library, 9220 Spring Hill Drive. (352) 540-6230.
Plants and markets
• Tasty Tuesday, 10 a.m. to noon Tuesdays in the courtyard at New Port Richey Library, 5939 Main St. Local organic growers sell seasonal produce and plant-based goods. The library also offers a seed exchange so gardeners can check out heirloom, genetically pure seeds from the library's seed catalog to start an organic garden. (727) 853-1265.
• Fresh Friday Night Market, 5 to 9 p.m. the first Friday of the month at Railroad Square in downtown New Port Richey (on Nebraska Avenue between Grand Boulevard and Adams Street). The market features vendors selling produce, plants and specialty foods such as fish, meat, cheese, baked goods, jelly and jam, honey, nuts, coffee, ethnic food, light refreshments and arts and crafts. (727) 842-8066; nprmainstreet.com.
• Fresh Market at Wiregrass, 10 a.m. to 3 p.m. the first and third Saturday of each month at the Shops at Wiregrass, 28211 Paseo Drive, Wesley Chapel. Features produce, Florida-grown plants and locally made jams, salsas, seasonings and sauces, plus the works of local artists. (813) 994-2242; tampabaymarkets.com.
• Suncoast Co-op hosts a farmers market from 10 a.m. to 2 p.m. Saturdays at the Habitat for Humanity ReStore, 4131 Madison St., New Port Richey. Features local in-season produce, candles and locally made products. The co-op also accepts orders for fresh, locally grown, chemical-free produce. Register at suncoastco-op.com; orders may be picked up during the market, between noon and 2 p.m. (727) 271-2754.
• Hernando County Farmers Market is from 10 a.m. to 3 p.m. Saturdays at 2450 U.S. 19, Spring Hill. (352) 232-4241; hernandocountyfarmersmarket.webs.com.
• Spring Hill Garden Club's Plant Nursery hosts plant sales from 9 a.m. to noon Saturdays and Mondays at 1489 Parker Ave. Browse or buy local plants and visit the nearby Nature Coast Botanical Gardens, open daily from sunup to sundown. (352) 683-9933; naturecoastgardens.com.
Guided tours of the Nature Coast Botanical Gardens, 1489 Parker Ave. Spring Hill, off Spring Hill Drive, are available for groups of five or more between 9 a.m. and noon Mondays, Wednesdays and Saturdays. There are 23 themed gardens, including the Rose Garden, Asian Garden, Memorial Garden and Butterfly Garden. Tours last about one hour and are free, however donations are greatly appreciated. Reservations are required. (352) 683-9933.