Zoo Blooms — The zoo transforms into an explosion of color with one of the largest tulip displays in the Midwest. Through April 30. Free with zoo admission. $18 adult; $13 child/senior. Cincinnati Zoo & Botanical Garden, 3400 Vine St., Avondale, cincinnatizoo.org.
Butterflies of the Caribbean — Beautiful, live butterflies coast around Krohn Conservatory among displays of Caribbean culture. Floral displays abound, inspired by the colors of the Caribbean sunset. Through June 19. $7; $4 children; $12 unlimited admission pin. Krohn Conservatory, 1501 Eden Park Drive, Eden Park, cincinnatiparks.com.
Workout on the Green — Free fitness classes outdoors in Washington Park every Tuesday and Wednesday. Classes start at 6 and 7:15 p.m. Free. Washington Park, 1230 Elm St., Over-the-Rhine, washingtonpark.org.Bee Yard Maintenance Day — Head to Gorman Heritage Farm to help the beekeepers work in the bee yard. 3:30-5 p.m. Free. 10052 Reading Road, Evendale, gormanfarm.org.
APRIL 21Party for the Planet: An Earth Day Celebration — The greenest zoo in America celebrates Earth Day with their seventh-annual Party for the Planet. Businesses and organizations from around the region will be on hand to share their expertise about living more sustainably. Includes music from the Tunes & Blooms series and a rain barrel benefit auction. 4-8:30 p.m. Free admission after 5 p.m.; $10 parking. Cincinnati Zoo & Botanical Garden, 3400 Vine St., Avondale, cincinnatizoo.org. Discover Herbs and More — The Northern Kentucky Herb Society discusses uses for fresh herbs, from cooking to household tips. 6:30-7:30 p.m. Free. Boone County Main Library, 1786 Burlington Pike, Burlington, Ky., 859-342-2665, nkyherb.com. Full Moon Walk — Hit the trails at night and enjoy a full moon viewing and natural history readings. 8:30 p.m. $5 members; $10 non-members. Cincinnati Nature Center, 4949 Tealtown Road, Milford, cincynature.org.
APRIL 22Earth Day Celebration at Krohn — Enjoy free-flying butterflies in underwater-themed decor. The first 300 visitors will receive free tree seedling. 10 a.m.-2 p.m. $7; $4 children. Krohn Conservatory, 1501 Eden Park Drive, Eden Park, cincinnatiparks.org.
EmpowerU Earth Day Lecture: Where Did We Go Wrong? — Bring adult beverages and lawn chairs and dress in your best Earth Day costume. EmpowerU Ohio takes a candid look at Earth Day issues. 5:30-7:30 p.m. Free. HWB Scout House and Outdoor Pavilion, 34 Village Square, Glendale, 513-478-6261, empoweruohio.org.
Cincinnati Nature Center Earth Day Celebration — The Nature Center is free Friday through Sunday, where you can explore the center’s trails or participate in some planned activities. April 22-24. Free. Cincinnati Nature Center, 4949 Tealtown Road, Milford, cincynature.org.Native Plant Sale — Choose from a large selection of locally grown native plants, including nectar plants for butterflies, edibles for birds and trees and shrubs. 10 a.m.-5 p.m. daily. Through June 30. Prices vary. Cincinnati Nature Center, 4949 Tealtown Road, Milford, cincynature.org. University of Cincinnati Re*Use Market — The Market accepts furniture, household goods, non-perishable food items, electronics, books, clothing, sporting goods, toys and more. Anyone can come take the donated items for free; at the end of the week, remaining items will be donated to local charities. 10 a.m.-8 p.m. daily April 22-May 3. Free. Old YMCA, 270 Calhoun St., Clifton Heights, 513-556-3844, uc.edu. Trees in Trouble Screening — CET Channel 48 broadcasts locally made documentary Trees in Trouble, about America’s urban forests. 4:30 p.m. Free. Channel 48, treesintrouble.com.
APRIL 23Earth Day OTR — 3CDC and Keep Cincinnati Beautiful host a fun-filled day of eco-friendly activities and vendors on the park’s Civic Lawn. Noon-7 p.m. Free. Washington Park, 1230 Elm St., Over-the-Rhine, washingtonpark.org. Evening Gardens — Learn how to convert a corner of a garden into an oasis of tranquility and peace. 10:30-11:30 a.m. Free. H.J. Benken Florist, 6000 Plainfield Road, Silverton, benkens.com.
GreenUP Day at California Woods — Assist the Cincinnati Parks staff in a clean-up day, where you help remove invasive plants, maintain trail and more. 9 a.m.-noon. Free. California Woods Nature Preserve, 5400 Kellogg Ave., California, cincinnatiparks.com.Dogwood Dash — The annual scenic springtime 5K run/walk takes you through the Boone County Arboretum. 9 a.m. $22-$32 registration. 9190 Camp Ernst Road, Union, Ky., bcarboretum.org.
Spring Fest in the Woods — Celebrate spring with wild edible cooking demos, crafts, vendors, live animals and more. Also features live music and face painting, plus education bout Ohio’s native plants, wildflowers and habitat registration. 10 a.m.-2 p.m. Free. Trailside Nature Center, Burnet Woods, 3400 Brookline Drive, Clifton, 513-861-3435.Bird Walk — Beginners are welcome for this casual bird-watching walk. 8 a.m. Free with admission; $9 adults; $6 seniors; $4 children. Cincinnati Nature Center, 4949 Tealtown Road, Milford, cincynature.org.
Wildflower Walk — A member of the Cincinnati Wildflower Society hosts a 90-minute guided hike of Nature Center trails. 9:30 a.m. Free with admission; $9 adults; $6 seniors; $4 children. Cincinnati Nature Center, 4949 Tealtown Road, Milford, cincynature.org.
Third Annual Goodwill Earth Day Electronic Recycling Celebration — Drop off unwanted computers, keyboards, mouse systems, monitors and other electronic equipment. 11 a.m.-5 p.m. Free. All 31 Goodwill Donation Centers, cincinnatigoodwill.org/donate.
Great Parks Listening Session — The community is encouraged to bring thoughts, ideas and questions about Great Parks of Hamilton County. 6-8:30 p.m. April 25. Free. Rhinegeist, 1910 Elm St., Over-the-Rhine, greatparks.org. 6-8:30 p.m. April 27. Free. Blue Ash Recreation Center, 4433 Cooper Road, Blue Ash, greatparks.org.
APRIL 27Family-Friendly Intro to Spring Edible Plants — Learn which wild spring plants are edible. The program also touches on ethnical harvesting practices, common poisonous plants and recipes which feature the plants. Bring a peeler, knife and cutting board. 10 a.m.-noon and 2-4 p.m. $5. Long Branch Farm & Trails, Creekside Barn, 6926 Gaynor Road, Goshen, cincynature.org.
APRIL 29The Environment as Muse: Artists and Nature — This symposium features four artists whose work is a tribute to the kinship of art and nature. Panelists include author Rick Bass, English professor Donelle Dreese and NKU’s professor of art Kevin Muente. 6:45-8 p.m. Free. Cincinnati Art Museum, 953 Eden Park Drive, Eden Park, cincinnatiartmuseum.org.
Party in the Woods — Cincinnati’s premiere party in the woods! Meteorologist Steve Raleigh emcee’s an evening of food, artwork and auctions. All proceeds benefit the Cincinnati Nature Center’s programs to connect children to nature. 6 p.m. $165 per person. Cincinnati Nature Center, 4949 Tealtown Road, Milford, cincynature.org.
MAY 01Flying Pig Marathon — The 18th-annual Flying Pig Marathon flies along the streets of downtown Cincinnati, Covington, Newport, Mariemont, Fairfax and Columbia Township. The race starts at 6:30 a.m. for runners, walkers, trotters, etc. 6 a.m.-3 p.m. $100-$120. flyingpigmarathon.com.
Get the Dirt on Backyard Composting — An hour-long seminar on the basics of backyard composting. 7 p.m. Knox Presbyterian Church, 3400 Michigan Ave., Hyde Park, hamiltoncountyrecycles.org.
MAY 04 Barrows Conservation Lecture Series — Dr. Joy Reidenberg’s lecture is “Why Whales are Weird, Wacky and Wonderful.” Explore the anatomy, evolution and adaptation of whales. 7 p.m. $14; $12 members. Cincinnati Zoo & Botanical Garden, 3400 Vine St., Avondale, cincinnatizoo.org.