Orange Tree


Orange Plant Information

Orange plant (Citrus sinensis) belongs to the Rutaceae family, to the subfamily Aurantioideae, in Citrae race and sub-race Citrinae. It is a flowering tree and its height in maturity can range between 16 and 50 ft. (between 5 and 15 m). Orange tree is grown mostly for its fruits, but also for its flowers and as ornamental.

All Citrus are trees with one main timber. Their principal arms normally sprout from the trunk at a height of 23-46 inches (60 to 120 cm) from the ground. Their shank is cylindrical and the crown of most cultivars is typically spherical, although the shape can vary depending on how the trees are pruned. All citrus trees (except lemon trees), with the effect of subtropical climate, fall into dormancy in winter, but do not shed their leaves. They are evergreen trees.

When an orange seed grows, the first organ that appears is the root, which is called the primary root. The primary root is large, white, and in certain growing conditions can be covered with root hair. In deep soils, the primary root -if not damaged during transplanting -increases, deeply and vertically and is the main root. On the primary root, secondary lateral roots are produced, which can be thick or thin.

Orange trees -although evergreen- are characterized by a tendency to constantly renew their foliage. During the first few years until the completion of the tree development, the annual amount of newly formed leaves is higher than that of old leaves that fell. The minimum leaf area, needed to produce 1 kg (2.2 lbs.) of fruits in a tree aged nine years, is equal to 2.4m2. Citrus usually bloom in spring, but there are exceptions, like lemon, which tend to produce flowers throughout the year. Although they produce a large number of flowers, only a small percentage of these ties and develops into ripe fruit.


Orange Plant Information

Orange Fruit Information

Growing an Orange Tree from seed

Growing Orange Trees from cuttings

Growing Orange Trees Commercially

Q&As Orange Trees

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