How to Grow Astrophytum
Astrophytum are small hemispherical cacti with a few prominent ribs and a thin layer of white, woolly scales. Bishop’s cap, sea urchin cactus, sand dollar, and goat’s horn cactus are various names given to different species of Astrophytum. Astrophytum species diifer; some are completely spineless, others produce dense woolly hair..They produce single flowers–sometimes two or…