Bladligging

Bladligging is a Dutch term that translates to "leaf falling" or "leaf drop." It refers to the natural process by which deciduous plants shed their leaves, typically as an adaptation to changing environmental conditions, most notably the onset of autumn and winter. This physiological process is triggered by hormonal changes within the plant in response to shorter daylight hours and cooler temperatures.

As days shorten and temperatures decline, trees and other deciduous plants begin to reabsorb essential nutrients, such as chlorophyll, from their leaves. This reabsorption causes the green pigment to break down, revealing other pigments like carotenoids (yellows and oranges) and anthocyanins (reds and purples), leading to the vibrant colors often observed in autumn foliage.

Eventually, a specialized layer of cells called the abscission layer forms at the base of the leaf stalk. This layer weakens the connection between the leaf and the branch, making the leaf susceptible to detachment by wind or its own weight. Once detached, the fallen leaves decompose, returning nutrients to the soil, which benefits the plant and the surrounding ecosystem. Bladligging is a crucial part of the annual life cycle for many plant species, aiding in their survival through periods of drought or freezing temperatures.