Q.Kumquat tree (not in a pot)
I have had my tree now for about 7 years, every year it would bear proper little fruits, this year only has 3 fruit but huge similar to a thick skin lemon, what is my problem?
NB: do not have photo
Certified GKH Gardening Expert
This sounds like the tree is taking up too much nitrogen. You can offset this by adding nutrients high in potassium and phosphorus. Here is an article that will help: https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm