This is Grewia occidentalis the 'African starbush' from the Malvaceae family. A summer flowering plant that produces clusters of purplish-pink, star-shaped flowers with an contrasting cluster of yellow anthers. The flowers are followed by an unusual four-lobed fruit that turns purple once ripe. The fruits are known as ‘cross-berries’ which can be dried, boiled or brewed. Bark and roots of the plant are used for medicinal purposes while the wood is used to create equipment such as bows and spear shafts.

In spring this plant can be propagated by seed or layering, however, it is most successful from seed. Studies have shown that in the wild seed eaten by monkeys and baboons germinate more successfully than those collected from a tree. This is due to the seeds chemical inhibitors being broken down by the animal's stomach acids.

Grewia occidentalis may be grown as an evergreen shrub, climber or small tree. In the U.K. it is not hardy and should be grown under protection such as a glasshouse. Grow in a loam-based compost and place in full sun. Carry out restrictive pruning as necessary and inspection for glasshouse whitefly and glasshouse red spider mite.

Seen at Hortus Botanicus - Amsterdam.