Lime Trees

Lime Tree – What Causes Thorny Stems?

Anonymous added on March 17, 2011 | Answered

My lime tree produces thorny stems. Are these normal?

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Certified GKH Gardening Expert
Answered on March 18, 2011

All citrus produce thorns, so this is normal. Is your tree producing a branch that is particularly thorny? That may indicate and issue. If there is a branch that is significantly thornier than the others, it may indicate that the rootstock is trying to produce branches. Typically, branches from the rootstock will grow from the base and if you look carefully, you will see that the branch actually starts below the graft line. Rootstock suckers like this should be removed.

But, as I said, all limes are a little thorny. Thorns on a lime are natural. You should only be worried and remove the branch if it appears that it is a rootstock sucker.

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