In the heart of the forest, something extraordinary is happening—a constant exchange of messages conveyed in a language far beyond human perception. Trees and plants communicate with one another in ways that often remain hidden from us. In this blog post, we would like to introduce you to the fascinating world of plant communication.
Communication among plants takes place mainly in two ways: through the root system and via chemical messengers in the air. Each of these communication pathways has its own complexity and plays a crucial role in the forest ecosystem.
A tree’s roots are not only used for absorbing nutrients and providing stability. Beneath the ground lies an extensive, highly branched network that runs through forests and plant communities. The so-called mycorrhizal network, a symbiotic association between fungi and plants, serves as a kind of “forest internet.” Through this network, trees and plants can exchange nutrients and information in order to support and warn one another.
But how does communication through the air work? Trees and plants emit chemical signals known as volatile organic compounds (VOCs). These messengers can be absorbed by neighboring plants, which can then activate their own defense mechanisms. For example, a tree infested by pests can release VOCs that warn nearby trees and give them time to activate their own defense mechanisms.
But communication does not stop at defending against pests. Some studies have shown that plants are also capable of influencing the growth and development of other plants through chemical messengers known as allelochemicals. Depending on what is most beneficial for the survival of the plant releasing them, these substances can inhibit or promote the growth of competing plants.
This constant dialogue between trees and plants shows how interconnected and complex life in our forests is.
So when we plant trees locally in the Sauerland and advance our reforestation project, WALDEMAR can perceive our activity. Somehow, it’s nice to know!
By trying to understand the language of plants, we can learn how to better protect and care for our forests and environment. Trees and plants are constantly communicating with one another—it is up to us to listen.
