Bishop's cap, Astrophytum myriostigma Beavertail open spreading

open spreading

sometimes with an orange or red base

Water: Water every 2–3 weeks during warm months

but in practice is best grown in a sheltered spot without severe frosts

Bishop's cap, Astrophytum myriostigma Beavertail open spreadingAstrophytum myriostigma (common names: bishop's cap cactus, bishop's hat or bishop's miter cactus) is a species of cactus native to the highlands of northeastern and central Mexico. Synonyms include Echinocactus myriostigma, Astrophytum prismaticum, A. columnare, A. tulense, and A. nuda. A. myriostigma is a spineless cactus defined by the presence of three to seven (usually five) pronounced vertical ribs which define the cactus' shape when young (the