Honey-locust is widely planted as a hardy and fast growing ornamental tree. Because of the small leaflets and open crown, the trees cast a light shade that permits shade-tolerant turfgrass and partial-shade perennials to grow underneath. FUN FACT: Pulp of honey locust has sugary taste, hence the name "honey" locust. Native Americans used pulp as sweetener and as a source of food although pulp has been reported to be irritating to the throat and somewhat toxic.