Purple Robe Locust Tree

Hardy to zone 3, this locust prefers full sun, is tolerant of most soils and fixes nitrogen. Purple Robe Locust(Robinia pseudoacacia 'Purple Robe') is a medium-sized upright tree, growing 40 feet in height with a compact, rounded form. The trunk is long and straight with an interesting branching pattern. Borers can be problematic following stress. Should be pruned in late summer to avoid "bleeding." The flowers of the Purple Robe Locust are showy, pea-like and occur in pendulous clusters 4 to 8 inches long. The Purple Robe Locust flowers in late spring and continuing into the summer, Purple Robe Locust's long drooping fragrant flowers look like a wisteria's flowers.


I've had it for around 4 years, it grows pretty fast, it was only about a foot tall when I planted it. I love the flowers!