My lemons are not flavorful

Question

My lemon tree looks green and healthy and does produce a good crop of lemons. It is about 15 yrs old. This year for the first time the juice from the lemons it not have a strong lemon taste. My daughter made her usual lemon bars for Christmas and they had very little lemon taste. How to bring the taste back?

Answer 1

Taste of fruit is best when plants have adequate nutrition, especially micro-nutrients and trace minerals, which most chemical fertilizers do not supply. Deficiencies develop over time from being used up by the plant and from leaching with watering and rain.

I recommend an application of COF (complete organic fertilizer) early spring, summer and fall. This is the best one that I know of:
http://www.soilminerals.com/Agricolas4-8-4_MainPage.htm

This is second best:
https://www.downtoearthfertilizer.com/products/blended_fertilizer/citrus-mix-6-3-3/

Deep water adequately but not too much.
Mulch the soil surface with compost.