(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).
Originally from South America they are popular for their easy flowering habits, although the flowers are generally brightly colored. They are also popular for their ease to care for. The genus name "gymnocalycium" comes from the Greek for "naked calyx" referring to the flower buds
Recommended temperature zone: USDA: 9b-11
Sun exposure: Light shade
Watering needs: Summer grower, water regularly in summer, keep rather dry in winter
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz