Most aloes are not difficult to grow. Aloe greenei Aloe reitzii Aloe 'J. T. Owens' Cacti Family Cactaceae. Except for a few jungle species that were dispersed by birds, cacti are a New World group. They consist of columnar or globular stem succulents with spines and many-petalled flowers. In most genera the only leaves have been modified into spines.
Photosynthesis takes place in the stems.
Cacti are associated with deserts, but they also occur in dry prairies, high mountains, pine forests, and in trees in the jungle. Cacti need bright light and well-drained soil to grow well. They also appreciate a cool, dry rest in Winter to encourage flowering. Most species are at least moderately frost hardy if they are dry at the root. Ferocactus wislizenii Trichocereus pachnoi Opuntia macrocentra Echeveria Family Crassulaceae.