Sunday, January 30, 2011
Treating Yellowing Citrus Leaves
Quite a few leaves on my Meyer lemon tree (mostly on the side facing away from the window) have turned yellow and dropped. While some leaf drop is normal during the winter months, it's been a bit excessive this year, especially during the past few weeks. Leaf drop can result from insufficient sunlight or a lack of nitrogen. Yellow leaves with green veins (which doesn't seem to be the case here) can indicate an iron deficiency.
To rectify this, I moved my tree to a window that gets about 5 hours of direct sunlight a day, which is the best I can do. I also treated it with my slow release citrus fertilize. I have to remember that as my tree gets larger, I will have to feed it more often. At this point, I think I've gotten the problem under control. The yellowing has stopped and the tree is showings signs of new growth. How are your citrus trees doing this winter?