What Kind of Citrus Tree Has Thorns?

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Many types of citrus trees grow thorns at some point during their growth period. However, pruning away thorns, even from new growth is perfectly safe. Mature citrus trees, like lemons, limes and grapefruits, tend to grow thorns less frequently than newly grafted trees.

Fresh lemons on a lemon tree
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Many different kinds of fruit-bearing citrus trees are known to be thorny. Some of the most common kinds to grow thorns include Meyer lemons, grapefruits, and key limes.

Grapefruits on a tree
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Thorns often sprout on new grafts and fruiting wood. Juvenile plants grow thorns to protect themselves from grazing animals.

Branch with thorns
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Fruit growers who graft their trees should remove all thorns from the rootstock at the time of grafting.

A grafted branch
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As gardeners notice thorns on their citrus trees, it is safe to prune away the thorns. Pruning thorns will not damage new growths.

Farmer pruning an orange tree
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Citrus trees grow well in containers, making them appropriate for indoor growth as well as outdoor growth. These trees self-pollinate and will produce fruit when grown indoors.

An indoor lemon tree
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