GORGEOUS GARDENS —Gorgeous gardens: Need inspiration to turn your patch of dirt into a glistening garden? Then plan on taking in the Concord Museum's 30 th Annual Garden Tour on Friday, May 31, and Saturday, June 1, 9 a.m.-4 p.m., both days. The self-guided tour of seven spectacular private gardens and one ribbon garden. Visitors will enjoy a Japanese-style Zen oasis, including a rock garden, koi pond and black-pine bonsai tree at one stop. Another property, designed to replicate an Italianate utopia following a 19th-century trip to Europe, features trees that were planted during that time period. And another has plants that are found in Monet's famed Giverny garden, plus medicinal plants based on the 17th- century Apothecary Garden of London.concordmuseum.org or call 978-369-9763, ext. 216.
LOWELL SCENE —Lowell scene: Gallery Z, the artist cooperative at 167 Market St., presents Abstractions, a new exhibition of abstract art, on view May 23-June 23, with an artist reception on June 8, 4-6 p.m. The gallery has also issued an open call for musicians to perform at its Sunday brunches, noon-2 p.m., and Saturday open-mike nights, 7:30-9:30 p.m. Visit galleryzartistcoop.com.
Ayer Lofts Gallery on Middle Street features Barbara's Attic through May 26. The show offers a treasure trove of artworks by Barbara Gagel at reasonable prices. Hours are May 18, 19, 25 and 26, noon-4 p.m. Visit www.ayerlofts.com.
LEARN TO PAINT —Learn to paint: Dracut-based artist Claire Gagnon offers classes in watercolor, acrylics, mixed media and intro to painting at her Chez Claire Art School at her studio. Registration is underway for adult classes in May and June. Visit chezclaireartschool.com or call her at 617-901-3873.