Oranges are more varieties, the maturity period is not the same, generally more mature in the spring and fall seasons. Nuclear-free honey orange ripening period in late November, summer orange fruit ripening period for March-May each year, navel oranges in early to mid- to late November are varieties of ripening and so on.

Oranges are generally harvested during October each year when the fruit is ripe. In China, young fruit, fallen fruit can be dried for medicinal purposes. Resistant to storage and transportation. The ripening period varies greatly, which can extend the supply period of fresh fruit and processing raw materials. Sweet orange varieties according to the fruit ripening period have early, medium and late ripening. Varieties of different maturity period is not the same: such as: no nuclear honey orange maturity in late November. Summer orange fruit ripening period for March to May each year. Navel orange in November in the middle and late varieties of ripe, etc..