Lemons with thick rind

Question

For several years, my lemons have had a thick rind and little juice in them. I put a Meyer lemon tree in about 20ft away and it's starting to put out lemons this year. The rind again appears a bit thick. What's missing in my soil? I am using a citrus and avocado fertilizer. AG

San Francisco

Answer

There are two reasons that the rinds of citrus become thick and both are nutritional. The first is overfeeding with a food high in nitrogen. It is recommended that a basic citrus fertilizer be fed in spring and again in fall along with a supplement that contains zinc such as FST. The second reason is a deficiency in phosphorus ( the more likely cause). To avoid providing an excess of nitrogen, you can supplement the recommended feedings with 0-10-10.

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