Grapefruit Trees

grapefruit rind

Zone 32091 | added on November 15, 2015 | Answered

Why are some grapefruit rinds thick and some thin? What causes that? Is it true that the fruit will be tart on tree with thorns?

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Certified GKH Gardening Expert
Answered on November 15, 2015

Very simply, a thick peel on any kind of citrus fruit is caused by a nutrient imbalance. You can read more about this here:

And, no, the presence of thorns is not an indicator of a fruit's tartness or sweetness.

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