My Lines Are Darkening And Hard Mostly On Bottom Half What Is Causing This?

Question

I will upload a photo. For the first time on my lime tree ( 5 years old planted about 2 feet tall now 9-10 feet) I have tons of limes I’m in zone 9a I was so happy and excited but now my limes are turning dark and hard. I am thankful and grateful if anyone can help me. In the photo are 3 examples and it was hard to pull them from the branch if that helps

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Answer 1

This is typical of excess nitrogen in the soil. This, or lack of phosphorus and potassium. A soil test will reveal which. Here are some article that will help:

https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm