Josh Beckmanwhat I wanted to show you is the chemical composition of this fertilizer. So the NPK is 5.3 nitrogen, P is phosphorus 7.5, and 10 is the K - potassium. So this is a high potash feed so this helps to strengthen the wood. It makes the branches and twigs strong and the plant is prepared for the winter and usually when the p and k is high it gives good Autumn color. So we use this for enhancing the Autumn color of certain trees.
FROM:Herons BonsaiFeeding Your Bonsai Trees