Summer at the Arboretum: Endless Summer is set for June 1 to August 4 (9:00 a.m. to 5:00 p.m.) featuring 150 freestanding hammocks, a Floral Fashion exhibit, live music and performances, cooking and floral demonstrations and Family Fun Fridays featuring favorite frozen treat vendors. Come visit the Dallas Arboretum and Botanical Garden this summer for a refreshing and enriching experience that blends nature, art, and education in perfect harmony.