Key Lime Irregularly Producing Fruit from Year to Year

Q. I have a key lime tree that’s 4 years old.  The first year it was full of fruit.  The next 2 years no fruit, then this year only 3-4 limes.  My neighbor has a regular lime tree full of fruit.  What’s wrong?

A. Freezing temperatures in the spring. If you have several light freezes that go through the valley in the spring you will have no citrus fruit. If you have one freeze that goes through the valley in the spring you will have some fruit.