“Intro to Botanical Art”: Lecture by Linda Vorobik, 7 p.m. May 2. Maple Valley Community Center, 22010 SE. 248th St., Maple Valley. 425-413-2572 or register@lakewildernessarboretum.org.

Plant sale, Friends of the Black Diamond Library: 9 a.m. May 3, 24301 Roberts Dr. Native plants, shade-loving ground covers, perennials, shrubs and trees. Supports library.

“Hands-on Intro to Botanical Art”: 9 a.m.-4 p.m. May 3-4. Two-day class. Cost: $120-$150, including all materials. Registration required. Lake Wilderness Lodge, Wilderness Room, 22500 S.E. 248th St., Maple Valley. 425-413-2572 or register@lakewildernessarboretum.org.

Marianne Binetti: Gardening columnist/author speaks at 7 p.m. April 29 on soils and fertilizers. Green River Community College’s Enumclaw campus. Call 253-288-3400 to register or go to www.greenriver.edu/enumclaw