Can I regrow my lime tree?

Question

My lime tree died, and I recently cut it all the way down. It’s now growing a “sucker”. Should I let the sucker grow?

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Answer 1

Most lime trees are grafted, which means a favorable variety is grafted onto a hardier rootstalk. So, if your sucker looks like it was below the graft, I would just start over with a new plant.

If your tree wasn't grafted, you could let it grow.

https://www.gardeningknowhow.com/edible/fruits/lime/lime-tree-tips-care-of-lime-trees.htm