Black locust and honey locust are shade trees that grow in a warm, sunny climate. Climate, geographic region and landscaping needs should be considered before making your tree selection.
The black locust is native to the southeastern U.S., and the honey locust is native to the central eastern region. Both thrive outside their native areas and are considered invasive in several states.
Black locust and honey locust both grow to an average height of 70 to 80 feet.
The bark of a black locust is a dark brown color with deep grooves, which makes the tree look like it is made of intertwining rope. The bark of a honey locust is a gray or brown color with clusters of long thorns growing from various locations.
Black locust and honey locust both have clusters of hanging, fragrant white flowers with a light shade of yellow in the lower center of each petal.
Black locust and honey locust both have thin, smooth, shiny seed pods that hang from the flowers. The seed pod on the black locust grows to a length of 2 to 4 inches, but on the honey locust it grows to a length of 12 to 14 inches.