Cultivation: Need a very
well drained soil. Watering should be rather infrequent. The fact that
the plant retracts into the soil between watering, is perfectly
natural and doesn’t cause any damage. It needs mild
heat in winter, avoid any frost.
Exposures: need full sun but should be protected from excessive heat
and sun in summer.
From seed which is seldom
available, or (usually) by grafting.