Orange (sometimes called Sweet Orange), whose scientific name is Citrus Singensis, is one of the most famous citrus fruits. Oranges are excellent sources of vitamin C. They also contain vitamin A. Most orange trees are grown from the buds in private agricultural nurseries. The buds are cut from trees that produce the various required types of oranges. Then they are grafted into small bushes called nurseries. Orange trees are transferred to the orchards after a period of grafting. It ranges between 6 months and a year, it begins to produce fruits after four years, and it can continue to produce oranges for 50 years, and about a quarter of the orange crop is sold as fruit, and the rest is used in foods, sweets, and jam.