Open daily from 9am–5pm Administrative Office Hours Monday–Friday8:30am–5pm Customer Service Hours Daily9am–5pm The Arboretum is closed Thanksgiving, Christmas and New Year’s Day. Admission The Dallas Arboretum is committed to providing you with the best possible experience during your visit. To ensure that you have a seamless and enjoyable time, the Arboretum kindly requests that all … Continue reading Hours and Admission