(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 species of barrel cacti that are native to Mexico. It grows as a single light green cactus that get up to 16". Its spines range from white to reddish in color and are pretty flat. They flower during autumn to early winter. Their flowers are usually purplish yellowish and reach up to 4 cm long.
Recommended temperature zone: Sunset: 11-13, USDA: 9b-11
Frost tolerance: Hardy to 25°F (-4°C)
Minimum avg. temperature: 50°F (10°C)
Sun exposure: Full sun
Origin: Mexico (Coahuila, Nuevo Leon, and south)
Watering needs: Little to moderate water when established
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz