How soon do I fertilize a newly planted palm tree ? Tree is in planting zone 10b
This a palm that was b and b'd
Certified GKH Gardening Expert
You shouldn't have to fertilize until next year, or in a few months after recover at the very earliest. You can use foliar sprays, should you feel that they are not getting enough nutrients from the soil if it is not fully established yet by that time.
This article will give you general care of Palms: https://www.gardeningknowhow.com/ornamental/trees/palms-trees/palm-tree-planting-outdoors.htm