Crassula is a large genus, they are native to many parts of the globe, but cultivated varieties are almost exclusively from the Eastern Cape of South Africa. Crassula contains between 250 and 300 species. The plants are highly adaptable and are found in habitats from deserts to wetlands. The succulents in this group vary greatly in shape and size. Some varieties only grow an inch high at maturity, while others become 15-foot trees. Some people use Crassula for bonsai arrangements. You could try too because is an easy plant to grow. This is now a mix of only 2 species, Crassula falcata and perforata.
The plants are herbaceous or shrubby, they have succulent leaves that come in a variety of shapes and sizes. These plants will benefit from some pruning to maintain neat shapes. From late fall to mid-winter, thick clusters of white flowers are borne. The flowers are small and congested, they vary in colour from white or pink to scarlet.
Hardiness zones 9-10, (-5°C/25°F, 4°C/40°F). Most cultivated forms will tolerate some small degree of frost, but extremes of cold or heat will cause them to lose foliage and die. Crassulas can be grown outdoors in regions where the temperature doesn't drop below 41º to 50º F, depending upon the variety; otherwise, some varieties can be grown in the greenhouse or home.
It loves full light and grow well in a standard cactus compost. The best compost to use for these plants is two parts loam and one part of sand. After potting, no water is needed until the soil becomes pretty dry. From spring to autumn apply a balanced liquid fertilizer monthly and water moderately. In winter just water sparingly. Crassula prefer a dried air and if you want to grow a little faster you will have to transplant it every spring in a bit bigger pot.