A large suckering shrub, Black-haw is sometimes considered a small tree as well. It grows up to 20 feet in height and can spread up to the same width. It produces pretty white clusters of flowers that turn into purplish-black berries, edible to both animals and humans. Black-haw prefers part sun, and though it will grow in deep shade, it most likely will not produce blooms. It is adaptable to many kinds of soil types.