Adenias are caudiciforms and have a big woody stem which is called caudex. Most cuttings do not produce a caudex so it is best to propagate by seeds. Adenias are either male or female so one of each is required to produce seeds. They come from Africa and Madagascar so they like to be kept over 40 degrees fahrenheit. Their sap is poisonous, and they should be handled with caution, particularly when pruning. Adenias caudex, (thick stem) is where they store water. Water in spring when foliage appears to be growing. Don't be alarmed if you lose foiage in fall and winter, cut back watering at this time. ..