Mackaya bella Harv.

Mackaya bella, called the forest bell bush, is a species of flowering plant in the acanthus family Acanthaceae, native to South Africa.

Growing to 1.5 m (4.9 ft) tall and broad, it is an evergreen shrub with glossy green leaves, and trumpet-shaped pale lilac flowers veined in purple. The plant is not hardy below 10 °C (50 °F), so in temperate zones requires protection during the winter months. However, it may be placed outside in a sheltered spot in summer. It requires an alkaline or neutral soil.

It has gained the Royal Horticultural Society's Award of Garden Merit.

Mackaya bella - Wikipedia