(This plant comes in a 3.5" 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).
This clumping cactus forms extensive colonies up to 15 (or more) cm in diameter.
Flowers: Approximately 4 cm long, 3.5 cm in diameter, fiery-orange-red to deep scarlet, the pistil and stamens are white.
Cultivation: Full sun to light shade, Water regularly in summer but do not over water. Keep dry in winter. Hardy to -4°C.
It is better that they are re potted regularly. Re potting will increase the number and size of stems and will increase the number of flowers produced. Re pot yearly until reaching about 100 mm in size, then every two or three years will suffice. Re potting is best done at the end of winter but can be done at other times. Do not water for a couple of weeks after re potting to reduce risk of root rot via broken roots.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz