Aspen tree leaves turning black
I have 3 Aspen trees in containers that I got from a nursery to plant in my yard. They had already leafed out . I had to leave town for a couple of days and left them in a dark garage. When I got back home I noticed that some of the leaves on all three trees had turned black and were curling . Would leaving these trees in the dark for two days cause this . They haven’t been exposed to frost .
Black leaves are usually signs of cold temperature injury. Even in a garage the temperatures could get cold enough to injure the newly formed leaves. The good news is, this happens almost every year on aspens and they typically recover with no problems. Make sure to keep them watered and they should be fine. Thanks for the question.