Indigo berry is a small tree or medium-sized evergreen shrub reaching a height of 6 - 10 feet. It has an open to moderately dense, rounded, low-branching growth form with spiny stems. It has smooth to slightly fissured gray bark. Leaves are green, opposite/subopposite, simple, entire, orbiculate, leathery, clustered near the branch ends and about 2 inches long. Flowers are small, white, fragrant, funnel-shaped and borne in the leaf axils. Butterflies are attracted to the flowers. Fruits are globose, white to ivory berries, fleshy with blue-black pulp, 1/2 - 1 inch in diameter and containing 5 - 10 tiny seeds. Seeds are used for propagation and birds eat the fruits. Fruits are also used in herbal medicine. The wood is an excellent fuel. Indigo berry grows well in sandy or rocky well-drained soils. With pruning it can be shaped into an attractive individual plant or hedge. Tolerant of salt, it is a good shrub for coastal landscapes. It is an excellent choice for difficult sites without irrigation, and as an accent or specimen plant in gardens, parks or native plant garden. It also makes an attractive bonsai plant.