Question: the instructions for how much Fruit Tree Fertilizer to add assumes the trees are in the ground. I have a plum tree – trunk diameter 5″ in a container. According to your instructions I should add 5 cups. Seems rather excessive. How much should I add, and how often?
If measuring in a straight line passing from side to side through the center of a trunk and if that distance is 5″, then this measurement would be correct. You could cut this application in half if you would like. Just monitor the trees health about 30 days from now and see how it is reacting. It may require another feeding. Scratch this fertilizer into the top inch or two of soil and water very well.