Locust, Bristly 1-0 (Robinia hispida)
(can grow in Zones 3-5 but cold weather inhibits growth) Bristly Locust is a shrub that can reach heights of 8 to 12 feet. It grows well on soils with good drainage. Bristly Locust is a one of the best erosion control shrubs, especially for steep sites. This plant is a nitrogen fixation plant, which will help poor soils. The attractive pink flowers, which bloom in late spring to early summer, attract bees and butterflies.