Astrophytum Asterias 'Super Kabuto' Like a K-Pop boy band, this little dreamboat has a large and fanatical fanbase… indeed, it’s probably the most popular of all the cactus cultivar, this star is a summer grower - 10cm when mature - requiring little water, good drainage and a dry winter. So… Super Kabuto: easy on the eye, easy to maintain, features startling flowers and is a genuine cactus crowdpleaser amongst global devotees. We have a winner.