Water
extremely drought tolerant, water when soil is dry to the touch
Soil
very fast draining, ideally containing sand, potting mix suitable for cacti and succulents
Humidity
low
Repotting
Repot in Spring only when roots become cramped. Do not water for a week or more after repotting. Needs a large pot to accommodate a large root system.
Plant toxicity
non-toxic to humans nor animals when ingested.