What is the significance of perennial shedding of leaves?

The shedding of leaves by perennials is a defensive reaction of perennials to adverse conditions.
Transpiration passes through the leaf – a process that is responsible for the movement of water through the vessels of the plant and its evaporation. If water remains in the vessels of the plant during the cold season, it will freeze. This means that it will increase in volume, and the vessels will burst under pressure. And this will cause irreparable harm to the plant.



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