Coffee is a tree of botanically Rubiaceaae family which has over twenty known species throughout the world. However there are two main species of commercial value called Arabica and Robusta. The two species are different in taste and size and in their climatic requirements for growth.

The Robusta is restricted to humid altitudes of about 4000feet above sea level whereas the Arabica generally does well in higher altitudes of say 4000 feet to about 7000 feet with mean temperatures of about 70