(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).
This gorgeous plant is also known as red-headed Irishman. It has a really soft curious looking reddish spines that can resemble a red headed man.
Recommended temperature zone: USDA: 10
Frost tolerance: keep above 26°F (-3°C)
Sun exposure: Light shade
Origin: Morelos and Guerrero states, Mexico
Growth habits: Columnar, clumping, up to 12" tall (30 cm), 4" in diameter (10 cm)
Watering needs: Regular water in summer
Propagation: Seeds, offsets
Blooming habits: The flowers are red
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz