Guava, (Psidium guajava), small tropical tree or shrub of the family Myrtaceae, cultivatedfor its edible fruit. Guava trees are native to tropical America and are grown in tropical and subtropical areas worldwide. Guava fruits are processed into jams, jellies, and preserves and are common pastry fillings. Fresh guavas are rich in vitamins A, B and C; they are commonly eaten raw and may be sliced and served with sugar and cream as a dessert The common guava has quadrangular branchlets, oval to oblong leaves about 7.6 cm (3 inches) in length, and four-petaled white flowers about 2.5 cm (1 inch) broad. The fruits are round to pear-shaped and measure up to 7.6 cm in diameter; their pulp contains many small hard seeds (more abundant in wild forms than in cultivated varieties). The fruit has a yellow skin and white, yellow, or pink flesh. The musky, at times pungent, odor of the sweet pulp is not always appreciated. Propagation is usually by seeds, but improved varieties must be perpetuated by plant parts. The plant’s hard dry wood and thin bark prevent cutting and conventional methods of grafting. Veneer grafting, using as rootstocks young plants in vigorous growth, gives excellent results