(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 cactus is a very spherical dark green globe. It has dense close to stem spines that curve inwards. When they begin to bloom they produce gorgeous rings of bright pink/magenta flowers.
Recommended temperature zone: USDA: 10b-11
Frost tolerance: Probably tender below 32°F (0°C), avoid frost
Minimum avg. temperature: 50°F (10°C)
Sun Exposure: Light shade
Origin: Oaxaca (Mexico)
Growth habits: Solitary, club-shaped, up to 5" tall (13 cm), 3.5 "wide (8 cm); generally no central spines
Watering needs: Moderate water. Keep dry in winter.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz