Fall Native Plant Sale — Heard Natural Science Museum and Wildlife Sanctuary, McKinney. Choose from hundreds of native plants ideally suited for Texas weather including woody lilies, trees and vibrant colorful perennials and wildflowers at the 4th annual fall native plant sale! Get expert advice to help you find the right plant for you and your landscape. Hours subject to change: Friday: 4 — 7 p.m. (members only); Saturday: 9 a.m. — 5 p.m.; Sunday: 1 — 5 p.m. (972) 562-5566; www.heardmuseum.org.