The orange tree is an evergreen, spiny, small-to-medium tree with aromatic glossy leaves, fragrant white flowers, and sweet, segmented orange fruits, native to Southeast Asia.
The sweet orange (Citrus sinensis, family Rutaceae) is a small, shallow-rooted evergreen tree 6 to 13 metres tall, with a closed, conical top and mostly spiny branches. It is one of the best-known fruits in the world. Its original home is unclear, possibly southern China and Vietnam, and it may have arisen from crosses involving the pomelo (Citrus maxima) and the mandarin (Citrus reticulata).
The tree prefers a marked change of seasons, so in the tropics it is grown more as a garden tree, while commercial orchards are mostly in the subtropics. Citrus grows best at 25 to 30°C. The sweet orange needs a deep, well-drained but moist loam in full sun, does not tolerate waterlogging, prefers a pH of 5 to 6, and dislikes manure. Each seed usually gives two or more seedlings that are genetically identical to the parent and are normally free of any virus the parent carries. Seed is best sown fresh and germinates in two to three weeks; seedlings are prone to damping off and must be watered carefully. The species also grows easily from cuttings and can be layered.
Source: Useful Tropical Plants database (Fern, K.).
Oranges support immunity, heart health, digestion, respiratory wellness, skin care, anxiety reduction, cancer prevention, and kidney-stone control due to their vitamins, flavonoids, antioxidants, and essential oils.
The fruit is widely eaten fresh, processed into juice, and used in cooking, baking, marmalades, and flavoring through zest and orange blossom water.
Oranges and orange blossoms symbolize prosperity, purity, and abundance and are commonly used in weddings, cultural traditions, and spiritual offerings.
Orange trees are propagated by grafting and grown in sunny, warm climates on well-drained soils, with fruits harvested only when fully ripe and protected from common citrus pests and diseases.