Visually striking, this rare Spiral Cactus is prized for its blue-green, columnar, spiral form. At full maturity it can reach more than 4 tall and will bloom at night with a large, beautiful pink or white flower. Like so many cacti, this is an easy-care plant thats very drought tolerant. In the growing season, it should be watered thoroughly when dry but only watered sparingly in the winter months. The eye-catching, architectural form of the Spiral Cactus is perfect for that sunny spot that needs added height or interest.