(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).
Echidnopsis cereiformis is an easy obliging blooming plant, which is happy in any average succulent house. This plant is common to warrant any description, let it suffice to say that this plant is easy to grow and flower, and one which will tolerate most soils and growing conditions.
Soil: A gritty, very free-draining compost is suitable
Watering: They require moderately watering through the growing season but enjoy plenty of water and some fertiliser in hot weather, this helps them to flower freely. Water more sparingly in winter according to temperatures. But, as with most asclepiads, it is unwise to leave them wet in cold weather.
Hardiness: Winter care presents no problems at 5°C with plenty of light.
Sun Exposure: Partial sun or light shade.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz