Giant Star Potato Tree (Solanum macranthum): A Tropical Spectacle

The giant star potato tree, Solanum macranthum, is a fast-growing, small tree or large shrub native to South America. Despite its common name, it is not a true potato but a member of the Solanaceae family, related to tomatoes and eggplants. It is grown for its enormous, star-shaped flowers and bold foliage.

Dramatic Blooms

The flowers are the showstopper: each measures 4-6 inches across, with five pointed, deep purple petals and a prominent yellow center of stamens. They appear in clusters throughout the year in tropical climates. The leaves are large, ovate, and softly hairy. The plant can reach 15-20 feet tall, with a spreading, open habit.

Taxonomy

Cultivation

This plant thrives in warm, humid conditions with rich, moist soil and partial shade. It is frost-tender and best suited to zones 10-11 or as a container plant that can be moved indoors. Prune to control size and encourage bushiness. The flowers attract bees and butterflies.

A bold, tropical statement plant, the giant star potato tree brings a touch of the exotic to any garden with its stellar blooms.