Scientific Name: "Tectona grandis". If genetically superior teak plants are grown on commercial scale, it is possible to earn good profits with low risk. When grown on fertile soils with irrigation and scientific management, each tree yields 10 to15 Cu. ft wood in about 14 years. The main stem grows to a height of 25-30 ft. and attains a girth of 35-45 inches. About 400 genetically superior teak plants can be grown in one acre, by adopting a spacing of 9ft. x 12 ft. Leaves are ovate-elliptic to ovate, 15-45 cm (5.9-17.7 in) long by 8-23 cm (3.1-9.1 in) wide, and are held on robust petioles that are 2-4 cm (0.8-1.6 in) long. Teak is a yellowish brown timber with good grain and texture.