Backing up what Ron's said, a certified, licensed arborist I spoke with told me that you should stay away from the trunk when applying fertilizer. He recommended not putting fertilizer within two feet of the trunk on a large palm. He also recommended Lesco Palm fertilizer. Just a side note, I was over at a neighbor's house looking at his landscaping and palm trees, when I noticed fertilizer granules all around the trunk and even stuck on the trunk up to a couple of feet in height. He must have really tossed it right at the tree itself. His palms are the small ones people buy off the "palm truck" and placed in small circles. People think they have to fertilize only around the trunk. I did tell him he should get that fertilizer off the trunk and at least a foot away from the trunk. The arborist told me to put the fertilizer further away so that the palm roots have to stretch somewhat to get nourishment.
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