Ungnadia speciosa
Mexican buckeye is a native, multi-stemmed large shrub or small tree reaching 15 to
30 feet high and about 20 feet wide. Its native range is west, central Texas to Mexico
and New Mexico. It is rapid-growing, drought-resistant, and resistant to cotton root
rot.
Its fragrant, pink flowers bloom simultaneously as it leafs out with light bronze-colored
leaflets which turn pale green during the growing season. Its fall color is bright
golden yellow. Its spring flowers somewhat resemble eastern redbuds. This plant may
be used as a large, coarse multi-trunk shrub or trained into a small tree. It makes
an attractive tall background shrub or deciduous screen. Mexican buckeye's round black
somewhat shiny seeds are contained within a coarse, dark brown, 3 valved capsule which
somewhat resembles buckeye (Aesculus spp.) seeds. However, the two species are not
related. Bees, butterflies, and other pollinators are attracted to the flowers. The
seeds are eaten by birds and other mammals.
Exposure: Full sun to part shade
Soil: Neutral to alkaline, dry
Hardiness: USDA Zone 7-9