Why Yellowing Leaves

Question

My dwarf fruit trees, which are planted in containers, are two years old. This summer, the leaves on the lime and orange are noticeably yellowing. Their growth is also very slow. Is this too much water? Not enough? Do they need fertilizer?

Answer 1

Here is some information about growing in containers:
https://www.gardeningknowhow.com/ornamental/trees/tgen/growing-trees-in-containers.htm
and about citrus trees:
https://www.gardeningknowhow.com/edible/fruits/lemons/how-to-grow-a-lemon-tree.htm