evolutionary relationship. Cultivation The bulbs are best planted just below the surface of the soil, with the neck of the bulb level with the surface. In colder climates mulching or lifting and overwintering is required. The bulbs may be propagated from offsets. Amaryllis bulbs require little watering and are drought tolerant. This plant has gained the Royal Horticultural Society's Award of Garden Merit. Medicinal properties Several compounds have been found in A. belladonna bulbs, including, 1,4-dihydroxy-3-methoxy powellan, which is an alkaloid. It has been observed that alkaloids in this plants bulb have properties to fight against malaria caused by P. falciparum.'' See also List of plants known as lily References Bibliography Amaryllidoideae Garden plants of Southern Africa Flora of the Cape Provinces Plants described in 1753 Taxa named by Carl Linnaeus