Polygala myrtifolia var. grandiflora

Polygala myrtifolia var. grandiflora is an evergreen shrub or small tree native to South Africa, bearing clusters of beautiful purple flowers that resemble those of sweet peas. This variety has larger, more richly coloured flowers and more tapered, pointed leaves in comparison to the species. In habit, it's a rounded, bushy shrub that can eventually become a small tree.

It's tender, so requires winter protection. Try growing it in a large pot or container that can be moved outdoors in summer, then indoors to a bright conservatory or greenhouse in winter.

For best results, grow Polygala myrtifolia var. grandiflora in a large container in full sun, in moist, well-drained, humus-rich soil.