My grapefruit has been re-potted at least once. I'm not sure I have every re-potted the lime. The tangerine came in something small, and I put it in a bigger pot--same with the banana.
Bear in mind, the Japanese bonsai citrus. If you buy a dwarf, they can take root-pruning, if you keep the tops in proportion. I have not done that myself, but I have seen this in pictures.
For the citrus, I recommend top-dressing with
coffee grounds, which my mother did in Florida with her in-ground trees. What happens here is that when they are outside, coffee-loving creatures, such as earthworms, will get in the pots. They till and aerate, sort of. Citrus are pretty heavy feeders, but mine have gone long periods with just coffee grounds and the rinse-outs from
dairy and non-dairy
milk containers. They need phosphorus, which they can get from rinse-outs. There may be times I have given them iron pills also.
I have friends who have tried these without as much success as I. I don't know why really. Mine have gone long periods without much attention other than
water. I once had a baby squirrel come on the front porch, get in the grapefruit, and refuse to get out. I dragged the tree outside, and he still refused to get out. They gnaw on the branches sometimes. They do this with an outside fig also. There must be something they need. Anyway, the little guy must have been not feeling so well. One of my cats got him.
Citrus leaves are used in some North African recipes. I have had some of these dishes, and they are delicious. I put the grapefruit blooms in water sometimes. They are so good.
George Washington Carver is said to have said (as quoted by Stephen Harrod Buhner) that if you love something
enough, it will give up its secrets. I really love my tropical trees.
Mary