It can be a large shrub or a small tree, depending on nature or your training. Sea Grape has large, thick, round evergreen leaves. Young leaves are red and then turn to a nice shiny green. The Seagrape's wood is interesting and very nicely colored , varying with the amount of sun and salt exposure. The 'grapes' are the seeds and grow in nice clusters , especially where exposed to the sun.
Birds love to eat the grapes and a fine jelly can be made when ripe in early summer.
Don't confuse Seagrape with Sea Hibiscus which also has very large leaves and flowers that change color as they mature . Seagrape is salt tolerant and can be happy very close to the ocean if not overly exposed to strong winds. It wants full sun and its favorite soil is plain beach sand. Better soil, however, is appreciated as long as it is well drained. When planting from a container, add some rich soil and water faithfully until established.