Q.Fertilizing Tangerine Tree
A tangerine tree was put into ground next to key lime tree. It looks like it is stunted versus the key lime. Ot needs a kick start to get going, I think. Both came from [
pots. I presented both to my daughter in Boca Raton and they get full sun all day. Got any thoughts? Photos available if you want.

Certified GKH Gardening Expert
The tangerine tree usually doesn't produce fruit until it is three to four years old. These articles describe the care of tangerines, which should help:
https://edis.ifas.ufl.edu/hs132
https://www.gardeningknowhow.com/edible/fruits/tangerine/tangerine-tree-care.htm