This is Streptocarpus formosus. They are part of a large genus of plants indigenous to South Africa. They grow wild in Port St Johns in the Transkei and other parts of Kwa-Zulu Natal.
These beautiful old fashioned plants are sensitive to light and easily burnt by the sun but at the same time don't flower very well in deep shade. They have beautiful trumpet-like flowers in summer and large leaves. They are a low growing plant. They are in quite acidic soil as they are near my Hydrangeas and Azaleas.
Of course I just love the colour - deeply spiritual deep purple.
