Cacti are defined as members of one plant family and are considered separately, although they are actually succulents. The term Succulent encompasses all other fleshy plants, which stem from a variety of plant families. Both succulents and cacti have developed means of survival that assure their growth in these regions. In plants where the leaves have not disappeared, the leaves may have become thickened or insulated with coverings of hair, wax or scales.
Succulents are excellent houseplants, for they are both adaptable and durable.
They are suited to a wide variation in temperature, and can even survive neglected watering. However adaptable, succulents are sensitive to some conditions occuring during planting. Succulents are sensitive to drainage and light, and are subject to invasion by rot organisms if they are kept too wet. Coarse sand or perlite are excellent soil additions to improve drainage, and organic matter is also beneficial. When preparing a soil for planting or repotting, it is recommended to use about two parts coarse sand or perlite with one part organic matter and one part good garden soil.