I have 2 grapefruit trees that are about 25 years old, They have produced fruit for at least 20 years, this year however there are no fruit at all. The leaves look normal. Is there anything I can do to correct this problem?
Certified GKH Gardening Expert
Being an aged tree such as this, it could be that the tree is nearing the end of production. Although they can produce for around 50 years, this can be more or less. You can try to add fertilizers high in potassium (K) and phosphorus (P), and add a little iron sulphate to help with the pH of the soil. This can help the tree to have what it needs to bear fruit properly.
Here is an article for more information: https://www.gardeningknowhow.com/edible/fruits/grapefruit/grapefruit-tree-not-producing.htm