Q.No fruit on lime tree
I have had a lime tree for four years and no fruit. I use “Vigoro” fruit, nut and citrus fertilizer spikes at least twice a year. The leaves are very nice and green – very beautiful. I do not know the variety, maybe “Bearss.” I just purchased a small “Bearss this week and planted it a few feet away from the four year old lime tree. What could be the problem?

Certified GKH Gardening Expert
There are a number of reasons why a lime tree might not bear fruit. Here is an article that you may find helpful: https://www.gardeningknowhow.com/edible/fruits/lime/reasons-and-fixes-for-lime-tree-not-producing-blossoms-or-fruit.htm