Why are my citrus tree leaves turning yellow. i have fed citrus fertilizer and epsom salts.
The tree is in a very big pot and its not root bound
This can also happen due to a lack of light. Make sure to give this full sun, or plenty of horticultural lighting if this is indoors.
This article will help you with the care of citrus in container: https://www.gardeningknowhow.com/edible/fruits/lime/potted-lime-trees.htm