Why Citrus Fruit Get Thick Peels And Little Pulp

Why Citrus Fruit Get Thick Peels And Little Pulp

By: Heather Rhoades

For a citrus grower, nothing can be more frustrating than waiting all season for a lemon, lime, orange or other citrus fruit to ripen only to discover that the inside of the fruit has a thick peel with more rind than pulp. A citrus tree can look healthy and get all the water it needs, and this can still happen, but you can fix it and make sure that your citrus fruits never end up with a thick rind again.

What Causes a Thick Rind in Citrus Fruit?

Very simply, a thick peel on any kind of citrus fruit is caused by a nutrient imbalance. The thick rind is caused by either too much nitrogen or too little phosphorus. Technically, these two issues are one and the same, as too much nitrogen will affect how much phosphorus a plant will take up, thus causing a phosphorus deficiency.

Nitrogen and phosphorus are a citrus grower’s best friend. Nitrogen is responsible for foliage growth and will help the tree look lush, green, and able to take in energy from the sun. Phosphorus helps the plant to form flowers and fruit. When these two nutrients are in balance, the tree looks beautiful and the fruits are perfect.

But when the two are out of balance, it will cause problems. A citrus tree growing in soil that has too much nitrogen will look very healthy, except for the fact that it will have very few, if any blossoms. If it does produce blossoms, the fruit themselves will be dry, with little or no pulp inside and a bitter, thick rind.

A phosphorus deficiency will cause almost the same results, but depending on the levels of nitrogen, the tree may not look as lush. Regardless, the rinds on citrus fruits from citrus trees affected by too little phosphorus will be thick and the fruit inedible.

The easiest way to fix both too much nitrogen or too little phosphorus is to add phosphorus to the soil. This can be done with a phosphorus rich fertilizer or, if you are looking for an organic phosphorus fertilizer, bone meal and rock phosphate are both rich in phosphorus.

Thick rinds on citrus fruit does not just happen; there is a reason for thick peels on lemons, limes, oranges and other citrus fruit. You can fix this problem so that you never again have to experience the disappointment of waiting so long for a fruit you can’t eat.

Read more about Citrus Trees
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