Despite what you might think, leaves don’t change colour and fall off just so you have an extra chore in the fall. The changes in the amount of sunlight, due to both shorter days and a lower sun, combined with colder temperatures to tell the trees that it’s time to go dormant. As they begin their long winter’s nap, one of the first things to slow down is the chlorophyll-making process that gives leaves their green colour. But there’s a lot more science to this story!
Have you noticed a little change in your trees? It’s not uncommon for property owners to look at one or more of their trees and wonder what season it is, as the colours change from green to red, yellow, or orange in the middle of summer.
It’s not the changing of the temperatures or a tree acting out of season because it’s unusual – changing colours is a sign that your tree is under a lot of stress. Take red leaves as red alerts that you need to give your tree some first aid!