I have an Eastern Redbud tree in a container that I just purchased this Spring before leaf break from a nursery in SW MI. It is showing signs of chlorosis (lighter color, thin leaves with the veins darker). I left it in a pot because the temperature is borderline for Winter survival. I did repot it in Professional Grower's Mix. The tree is about 7' tall including the pot, so it is a good size tree. I added a light sprinkling of fertilizer about a month after potting it up. Also, when I took it out of the pot, I noticed that the ball of roots was growing in red, thick clay. I tried to aerate the roots by opening up some of the clay. But wet clay is really hard to aerate. I hoped that I could balance out the problem by using the Professional Grower's Mix. About a week ago, I put a moderate amount of Epsom Salt in the soil, so that the roots might be able to take up the nutrients. Things haven't changed much, and the leaves are still light green, but not yellow. The veins are still showing through darker green. It's a lot of work for a $38 bargain tree, but in general it is really beautiful on my deck. If it makes it through this year, we are overwintering the dormant tree in our garage. Thanks for any help.
