Lithops are true mimicry plants: their shape, size and color causes them to resemble small stones in their natural surroundings. The plants blend in among the stones as a means of protection.
Individual Lithops plants consist of one or more pairs of bulbous, almost fused leaves opposite to each other and hardly any stem. The slit between the leaves contains the meristem and produces flowers and new leaves.
Lithops begin growing during the fall, continue throughout the winter and into the spring. In late spring or early summer, the plants will begin to go dormant. In habitat, it is necessary for their survival to rest during the long period of intense heat and little or no rainfall, using what water they have stored previously to last the summer. With the approach of cooler and shorter days of the fall, Lithops will grow again. The plants require little or no water when they are dormant.