Gregg's ash is a large shrub that can be trained into a small tree. It can be drought-tolerant once established and can be used as a container specimen. This species has smaller leaves than other ash tree species, forming clusters of three to 11 leaflets. The bark is smooth and gray, and the branches are quite thin. Other common names include littleleaf ash, Mexican ash, and dogleg ash. This is one of the few ashes that tolerate some shade. Emerald ash borer has not yet affected this tree in its native range but could do so in the future.
Native area: Arizona, New Mexico, and Texas
USDA growing zones: 7 to 10
Height: 15 to 20 feet
Sun exposure: Full sun to part shade