Orange Tree Information
Most people would think of an orange if asked to name a citrus fruit. These tangy orange gems add Vitamin C to the diet and are a sweet treat. They are grown outside in warmer climates, but dwarf trees may also be used as a houseplant in other locations. Does this Spark an idea?
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Definition
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The botanical name for the sweet orange is Citrus sinesis. Orange types include blood, navel and Valencia. Bitter orange (Citrus aurantium) is a cousin of the sweet orange that has similar growing habits and is used for marmalades.
Geography
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Orange trees grow outdoors in USDA hardiness zones 9-11. In Zone 9 protection such as mulch may be needed to protect against winter chill.
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Size
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Most standard orange trees will be 25 feet tall when mature. Choose a semi-dwarf or dwarf variety for a smaller tree.
Sun and Water Needs
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Grow orange trees in full sun when possible. They will still grow suitably in part shade. Do not water in the winter. Watch the tree carefully and water only as needed because too much water will produce inferior fruit.
Soil
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The type of soil that orange trees thrive in depends on the location. Consult with a local nursery to find the varieties that are appropriate for your area.
Pruning
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Orange trees do not require much pruning. Purdue University says any branches that are lower than 1 foot on the trunk should be removed, along with any dead, diseased or damaged branches.
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References
- Photo Credit Flickr user Mihai Bojin
