(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).
Flowers: bright yellow
Blooming season: It produces several flowers at a time from spring to early summer that remain open for about three days.
Watering: Water in moderation, it prefers a completely dry place during winter. Keep dry in winter or when night temperatures remain below 10° C. Water it less than average if in bigger pots.
Special needs: Provide very good ventilation. Nearly all problems occur as a result of overwatering and poor ventilation, especially when weather conditions are dull and cool or very humid.
Exposure: It will do its best with lots of sun and becomes stressed with inadequate light.
Hardiness: It likes warmth (recommended minimum winter temperature 5° C) however plants kept perfectly dry can survive low temperatures, approx. -5°, but for safe cultivation it is best to avoid freezing temperatures
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz