Whether they are cultivating medical marijuana (cannabis indica) or recreational marijuana (cannabis sativa), growers need clear information and helpful tips presented in a straightforward way. Especially if they use a lot of their own product! Medical marijuana must be free of contaminants and every aspect of its environment much be controlled and cared for. Sound complicated? Not anymore. With Growing Marijuana Indoors, growers will learn to breed a variety of plants to soothe medical marijuana users.