Tree Dormancy – why trees lose their leaves
Deciduous trees go through a period of inactivity, known as dormancy, during the winter months. Dormancy is brought about by decreasing day length (photoperiodism), cold initiating chemical actions that cause leaf drop, thereby making Autumn the perfect time to don a sweater, grab a cup of pumpkin-spice latte, spend some time outside and become mesmerized watching the swathes of green trees fade away–replaced by dazzling amber, maroon, gold and bronze hues.