[Wikipedia] Distribution: When found naturally the plants can be seen growing at the base of cliffs or on steep hills.[10] They are native to the Eastern Cape in Uitenhage and Humansdorp, in South Africa, and is found on wet grass and in river beds at altitudes up to 300 meters. They prefer subtropic biomes but has been introduced into the Azores, California, Mauritius, New South Wales, Queensland, Réunion, Spain, Tunisia, Victoria, and Western Australia.[11] They have become popular in Europe in places like Sicily, Italy. (link added by Mary Ann Machi)