My fruit trees and shrubs have been turning yellow gradually over the last few years, and is has gotten worse. I have been adding iron to the soil without any change. What else could I do to reverse and prevent this?
Pale Yellowish Green Leaves on Small Trees and Shrubs
Certified GKH Gardening Expert
The tree may be suffering from an iron deficiency. This commonly causes this kind of coloration on the leaves. This normally happens either when the plant is watered too much and the nutrients get leeched away or if the pH is too high. Test the soil and correct and nutrient and pH issues found when testing. Also, make sure that the soil is not too porous and is letting the water run away too quickly.