Q.Carrot Wood Tree Is Unhealthy
I love our carrot wood tree and it provides a lot of shade. It’s about 23 years old and the last 10 years it’s been a very pale green with a bit of yellow. Leaves are dry and crunchy. I have given it many types of food over the years and nothing makes a difference. Lately I’ve been deep feeding with Ross root feeder fertilizer 25-10-10 Total nitrogen, available propagate, soulable potash and nothing has changed.. went from sprinklers to drippers last year and it has stayed the same. Any suggestions on what fertilizer to give it? My neighbors is deep green and we both have clay soil and he doesn’t feed his any fertilizer.

Certified GKH Gardening Expert
I would take your neighbor's advice and stop fertilizing. They don't need it and that might be what is causing the burn. It only needs water during drought times so make sure it isn't being overwatered.
https://www.gardeningknowhow.com/ornamental/trees/carrotwood/carrotwood-tree-information.htm