What Happens to Perennial Plants? Why?

Perennial plants are plants whose life cycle can last from three years or more, each year going through a vegetative cycle. Every year perennial plants “wake up” after winter, active sap flow begins, buds swell. Then leaves appear, flowering occurs with the further formation of seeds, for the purpose of reproduction. Before winter, photosynthesis in the leaves stops, sap flow slows down, leaf fall occurs. Thus, the plant prepares for wintering in conditions of a lack of light, heat, and water. The cycle repeats itself every year.