The BLUEBERRY is a small bush of 25 to 50 cm, it has creeping branches from which green sharp stalks appear covered with alternate oval leaves. The flowers appear isolated and varying between green and pink. The fruit are rounded or oval berries that vary within 7 and 12 mm, black or red (according to the variety) when they reach their maturity, appearing covered by a bluish dust or with a slightly resisting film; firm skin and juicy pulp, aromatic with a sour taste. They are picked in a selective way according to the fruit maturity ratio, depending on color and size, which making up to 8 recollections per plant. It requires slightly acid grounds which we can obtain by acidifying the water.
The cherry trees grow mainly in hot areas even if they can tolerate cold climates. This fruit is represented in bunches, it has in general, heart or almost rounded shape of approx 2 cm of diameter and a color that varies from yellow, red and almost dark according to the variety. Among them there are two most known species which are the sweet cherry (Prunus avium) and the sour cherry (Prunus cerasus), the former are big and firm trees reaching heights of up to 11 mts, of smooth, ringed, reddish brown bark and its crown is composed by extended branches, while the sour cherry tends to be smaller and rarely overpasses the 5 mts height. It can be cultivated from the minimum height of up to 500 mts above sea level. It needs many hours of cold for its bloom and rarely a need of hot climate for the fruit development. It prefers long and cold winters, temperate spring and hot and short summers. A good drainage, rarely limy, with good sun and air exposure grounds are preferable for its cultivation. The picking of cherries is done when the fruit reaches its maturity (skin color and soluble solid content). It is done by hand fruit by fruit to avoid possible damage.