These are her-baceous or shrubby plants bearing trumpet-shaped flowers. In warm districts they may be planted into the open garden in summer, but they are mostly grown for greenhouse decoration.
They may be easily grown from seed sown in February or March, or cuttings may be taken in March. Thoy like a compost of fibrous loam and sand, with the addition of good manure. The shoots should be pruned close to the main stem in March, and as soon as the young shoots appoar, the shrubs should be repotted if necessary. A temperature of 50 to 60 degrees should be maintained.