The leaves of the coffee tree look like the camellia's. They are
broad, shiny, very dark, and shaped like spearheads. The small white
flowers are star-shaped blossoms that appear in clusters at the base of
the leaves. The coffee plant pollinates itself, resulting in a
purer and stable stock, with few chances for variations. An evergreen
plant, the coffee tree grows up to 6 metres in height, almost 20 feet.
The farmers will prune them to only 2 metres in heights or about 6 feet
in order to make it easier to pick the beans and to encourage a heavy
growth of the beans. When the coffee plantation is in bloom, with all
of the blossoms bursting forth simultaneously, the intense perfume is
strong enough to be detectable for miles. A few days later, the
blossoms have all fallen, revealing clusters of berries that have formed
at the base of the leaves.
With the size and color of cherries, the oval berries contain a pair of
coffee beans (sometimes one and sometimes three, much like the
unpredictable peanut), and they are sold in the market as peaberries. A
single tree will produce up to 12 pounds of coffee beans annually, much
of this a result of climate and soil conditions. When starting a new
tree, a seed usually takes about three years of growth before it will
bear fruit and another three years to reach maturity, but it can also be
generated by cuttings.
The mountain rain forests of Ethiopia, where all coffee plants
originated, have wild growths of coffea arabica, appearing in the
forest halfway between the ground cover and their tallest neighbors.
Reliable, regular conditions promote the growth of the trees, with no
extremes, neither excessively hot and dry conditions nor any degree of
frost. If the rainfall is heavy, they can produce too much fruit too
quickly, but without sufficient rainfall they will never flower and bear
fruit. The tree requires an equal balance of sunshine, never too much
direct sunlight, and never too dark or overcast. Plantation growers
have adopted to the natural setting by growing shade trees nearby, or
using the trellis to provide the right mixture of daylight and shade.
In mountainous regions, they can be grown on hillsides, giving the
correct balance of sunlight and shade throughout their growing season.