Balboa Swing

The annual opening of the historic gardens features a program by master gardener Phyllis Stephens on heritage perennials. May 18. Presentation at 1 pm. Gardens open through Aug. 31. Hours through May 31, Sat-Sun from 10 am-4:30 pm. June 1-Aug. 31, Wed-Sun, 10 am-7 pm. Sept. hours Sat-Sun, 10 am-4 pm. Free. Moore-Turner Heritage Gardens, 507 W. 7th Ave. heritagegardens.org (448-9335)

The market opens its greenhouse for the season and offers wine, chocolate and cheese tasting and more to visitors. May 18 from 11 am-5 pm. Free admission. Petunia's Marketplace, 2010 N. Madison St. petuniasmarket.com (328-4257)

Tour two of three, hosted by Master Gardener Ed Lester, hosted by the Friends of Manito. May 18 at 10 am. Free, registration required. Manito Park, 1800 S. Grand Blvd. thefriendsofmanito.org (456-8038)