(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).
Description: Melocactus oreas is a strongly spined solitary cactus easily recognizable by its cephalium.
Habit: Usually stays solitary, mature plants are easily recognizable by their cephalia, that have a covering of wool and dark reddish-brown bristles.
Cultivation and Propagation: Exclusively by seeds.
Melocactus oreas grows from April to October, it can’t endure long stretches of total dryness, and also too much water will rot it, as its weak root systems tends to be inefficient at sucking up water from wet soil. Nonetheless, again as a result of their tropical origins, they need a fair amount of water, but allow the soil to dry quite a bit before watering again.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz