(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).
It is easy to grow. They like a warm bright location, does great in partial shade avoid full sun. They need good drainage and prefer a neutral to slightly acidic compost with plenty of extra grit. Water and feed during the summer.
Blooming season: They bloom annually around June-July.
The flowers are lemon yellow with shining glossy petals, and are very showy. The red purple stigma emphasize the yellow of the petals.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz