Black Locust Trees In Your Yard
Black locust trees (Robinia pseudoacacia, USDA zones 4 through 8) are at their best in late spring, when trailing clusters of 5-inch, fragrant flowers bloom at the tips on new branches. Black locust trees may grow to be as tall as 80 feet (24 m) in height and is usually not shorter than 30 feet (9 m). This tree grows up to 19 oval-shaped leaflets on each leaf, with each leaflet having a matching pair on the opposite side. In the spring, the black locust tree usually produces flowers that are pea-shaped and typically white or yellow in color. Older black locust trees usually have dark-colored bark, while young trees may have green bark. Most black locust trees grow naturally in fields, prairies, or patches of woods. These trees do best in well-drained soil and full sunlight, and they tend to prefer very hot, humid conditions. They do not typically spread by seed because the thick outer shell of the seed doesn’t germinate easily.
Most of the time, new growth occurs as a result of underground rhizomes, also called roots. These rhizomes often sprout more rapidly as a result of any damage, such as tree cutting, fires, or disease, and are considered an invasive species in some areas. Even though the black locust tree often grows rapidly from the spreading of underground rhizomes, it does not usually live as long as most other trees. The black locust tree cannot compete well for root space because its roots tend to be shallower and weaker when compared to other types of trees.