In order to get it to survive, it will probably have to be grown in a pot until it has a caliper of 1 - 2 centimeters before setting out. It seems to prefer Mediterranean conditions more than the more southern forms. Cuttings need to be done in late summer, and seed set is weak for this plant for some reason. The more southern selections of this species do not have the arboreal habit of its northern relatives. Instead, growth is more like coppice, with many stems coming from the base.
Leaves are definitely hairier, and the plant is more xeric than montane in habit.
The foliage display is denser, to the point where it weeps from the weight of the flowers. It handles Greensboro summer humidity well. The most hardy form of the species, it is known in Big Bend as Pride of the Mountains for its flower display. It sets seed well, and forms a fairly large, dense trunk like the Coahuila selection. The plants are deciduous and should not be watered heavily in the winter greenhouse.