The Dyckia genus contains 120 species and many different hybrids.

They are found mostly in arid regions of South America. Dyckias can range in size from several inches across to massive two foot diameters. They are among the more cold tolerant of the family, but cannot withstand an entire winter of freezing temperatures. Dyckias respond well to regular watering and fertilizing during the summer growing period, tapering off greatly during the winter.