I have s beautiful Japanese snowbell that’s been in the ground for 5 years and has been doing very well until just recently. I believe that it probably has chlorosis as the new leaves are coming light green with dark veins. I believe it is getting sufficient water as since we are in a drought I am giving it extra water when it is dry 3 inches down. We have acidic soil here so I don’t think that is the problem. I have a product, Quick Green with Iron, that I’ve used on other new trees but I don’t know how much I should give a 12ft tree with an 8 inch calliper. It is mixed with water and a couple gallons doesn’t seem to be enough for this size of tree. Does anyone have any thoughts on how much the tree might need? Thanks Lesley