Discover Dallas' greatest natural resource - The Dallas Arboretum and Botanical Garden. The Arboretum features 66 superbly landscaped acres of towering trees, fragrant gardens, and lush lawns that beckon you out of the city's bustle into a serene and beautiful world. There's something to see year 'round, from the gorgeous blooms of springtime to the vivid colors of fall. You'll also ...