[eli5] How can trees be leaf-less all winter and even turn grey/brown but when spring comes they get small green leaves starting to grow on the edges of each branch?



Sorry if this has been asked before I wasn’t sure how to put it in words or if there’s a name for this phenomenon, I see trees with hugh branch structure all grey but with small almost un-noticeable green leaves, do trees hibernate in winter?


In: Biology

Trees that hibernate during winter are called deciduous. These plants do this to conserve energy for when they need to produce fruit, aromatics etc which takes a lot of energy.