▪ Join the monarch butterfly release celebration, 9-11 a.m. Sept. 24 at the Bob Jones Nature Center, 355 Bob Jones Road, Southlake. It’s free. 817-491-6333. bjnc.org
▪ The North Texas Daylily Society sale will begin at 9 a.m. Sept. 24, in Redbud Hall at the Fort Worth Botanic Garden Center, 3220 Botanic Garden Blvd. 817-392-5510; fwbg.org.
▪ Attend a free class on organic lawn care and learn why fall tasks are critical to success next spring at 10:30 a.m. Sept. 24 at Marshall Grain, 3525 William D. Tate Ave., Grapevine. Guest speaker will be Mark Hill of Metro Irrigation Supply. 817-416-6600; www.marshallgrain.com
▪ Attend the last in a series of beginner yoga classes at River Legacy Living Science Center in Arlington. It starts at 10 a.m. Sept. 24, and costs $5. Bring a mat and water bottle. The center is at 703 N.W. Green Oaks Blvd., Arlington. 817-860-6752; www.riverlegacy.org
▪ Take a hike on the Deer Mouse Trail, 1-3 p.m. Sept. 24 at the Fort Worth Nature Center and Refuge. On Sept. 25, learn about late-blooming wildflowers at 11 a.m., noon and 1 p.m.
On Sept. 29, join a “Nature Center After Hours” program on owls. It’s $10 and registration is required. Meet at the refuge’s front gate.
Most programs are free with paid admission ($2-$5). You may register for these activities and more online.The refuge is at 9601 Fossil Ridge Road, Fort Worth. 817-392-7410; www.fwnaturecenter.org
▪ Texas artist Deborah Paris’ exhibit, “The Nature of Things: Daphne Prairie,” which includes 25 oil paintings of one of the state’s largest remaining tallgrass prairies, runs through Oct. 20 at the Botanical Institute of Texas, 1700 University Drive, Fort Worth. www.brit.org
▪ The eleventh annual “Dinosaurs Live!” life-size animatronic dinosaurs exhibit at the Heard Natural Science Museum & Wildlife Sanctuary in McKinney continues. The exhibit is included in admission, $9 adults and $6 seniors and ages 3-12. www.heardmuseum.org
▪ Get your gardening questions answered with a call to the Tarrant County Master Gardener Association help desk, 817-884-1944. Hours are 8:30 a.m.-4:30 p.m. Monday-Friday.
▪ Johnson County Master Gardeners also answer gardening questions and give advice 9 a.m.-4 p.m. Fridays. Call the Johnson County Extension Office at 817-556-6370 and ask to speak to a master gardener.
Mark your calendar
▪ For First Saturday at the Botanical Research Institute of Texas, 9 a.m.-noon Oct. 1 at the campus, 1700 University Drive, Fort Worth. Activities include story time; garden, building and collection tours; and more. www.brit.org
▪ For the annual fall festival, 9 a.m.-7 p.m. Oct. 1 at all Calloway’s locations. Free activities include Mad Science performances, kids’ games, crafts and more. calloways.com
▪ For River Legacy’s 20th annual After Dark in the Park fall festival, Oct. 7-9 at River Legacy Living Science Center, 703 N.W. Green Oaks Blvd., Arlington. Family Fun Packages, $45 for four admission tickets plus activity and food tickets, are on sale until Oct. 6. For more information, call 817-860-6752, or visit www.riverlegacy.org.