Ardisia elliptica aka Shoebutton

Ardisia elliptica is an evergreen shrub or small tree. Common names include shoebutton ardisia and duck’s-eyes. It belongs to the primrose family, Primulaceae. Its native range spans tropical Asia and the Nansei Islands. It grows from India and Sri Lanka east to New Guinea. In the wild, it lives near coasts and wetland edges. These sites include beaches, tidal rivers, and peat swamps.

Garden plants reach about 10–16 feet [3–4.88 metres] tall and wide. Some trees reach 43 feet [13 metres], though most stay smaller. The plant grows fast and can form understory thickets. Its broad leaves stay on the plant year-round. Leaves grow in an alternate pattern along the stems. Pale pink to light violet flowers appear from June through August. The flowers and fruit both add garden interest.

Each small fruit is a drupe with one seed. Fruit turns from red to deep purple-black as it ripens. The pulp can leave dark purple stains on fingers. Birds visit the plant, and its fruit draws interest. People grow it as an ornamental in warm regions worldwide. It has escaped gardens in Florida, Hawaii, Australia, and Caribbean islands. It also grows wild on other Indian and Pacific Ocean islands.

For cultivation, give it rich, acidic soil that stays moist. It also grows in wet soil and can tolerate clay. Partial or full shade suits it well. One source reports that it can grow in full sun. Missouri Botanical Garden warns that sun may scorch its leaves. That garden lists it for USDA zones 8–10. Moist woodland sites and shade gardens suit its needs. No major insect or disease problems are reported.

Its spread poses a greater concern than pests. It seeds itself freely and can invade nearby land. Some places ban its cultivation, and planting elsewhere may still risk escape. Useful Tropical Plants records food uses and no known hazards. This does not establish its safety for pets. People eat the fruit raw, though its mild, sour taste lacks much flavour. They also eat young shoots raw or cooked. Flowers and fruit serve as cooked flavourings. Traditional uses include roots during childbirth and leaves for wounds and chest pain. These records describe folk uses, not proof of medical benefit. The wood also serves as fuel.