lemon tree that is losing its leaves

Question

The tree is in a south window. I have had it for 3 years and it has always thrived. All of a sudden it is dropping leaves. Also, it has never produced fruit, but blooms. Why is that and what can I do to have it produce fruit?

Answer 1

These articles can help: https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-leaf-drop.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-not-fruiting.htm

Answer 2

This article may answer some of your questions: https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm
Lemons don't fruit for 5 or 6 years, and the flowers need to be pollinated to make fruit. If you want to try this, you can use a Qtip to make like a bee.