An organic fertilizer that is an excellent source of nitrogen (usually ranges around 7%). Made from cotton seed that has been freed from its hulls and lints. Because of its acid reaction, it is recommended to be used only on acid-loving plants, such as gardenia, azalea, and rhododendron.
Cotton crops are among the most widely sprayed, typically with inorganic herbicides and pesticides. If you prefer to grow organically, some sources sell organic (unsprayed) cottonseed meal, including Hoffman's. (Don't shy away from the price tag on a box...a little goes a long way.)