Purchase hard-to-find herbs, native and well-adapted plants. Hours: 9am-5pm, Sat; 1-5pm, Sun. Heard Museum 1 Nature Place McKinney, TX United States Event URL Event Tags Festivals and Expos Gardening Date and Time Sat, 04/06/2013 - 05:00 - Sun, 04/07/2013 - 05:00