Othonna capensis, Little Pickles or Ruby Necklace, Cuttings for sale. This plant has nice purple leaves. It is also called Ruby Necklace. Othonna capensis (syn. Senecio herreianus Purple Flush) is native to South Africa. A regular cactus and succulent soil is suitable. We keep this species at around 12-15C in winter and water slightly in this period. In summer you can water more often.