(This plant comes in a 3.5 inch pot. You will receive a very similar plant to the one in the picture. It may or may not be blooming at the time of your purchase. The plant is shipped in its pot to prevent any damage to the roots).
Solitary spherical to short cylindrical cacti with very spiny stems, up to 15 (30-40) cm tall, 6 -10 cm in diameter.
Flowers: magnificent hot pink/magenta with a contrasting neon yellow throats in spring up to 5 cm long.
Cultivation and propagation: It is a summer grower species. Easy to cultivate but somewhat rot prone if kept in a non-ventilated place. Water regularly in summer, but do not over water, needs a full sun exposure (or light shade) Good heat tolerance.
Hardy to at least -5°C (but probably can tolerate - 10° C for brief periods.)
Propagation: Usually propagated from Seeds. (seldom produces offsets)
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz