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 each other in ways that often remain hidden from us. In this blog post, we want to introduce you to the fascinating world of plant communication.
Communication among plants mainly takes place in two ways: through the root system and via chemical messengers in the air. Each of these communication methods has its own complexity and plays a crucial role in the forest ecosystem.
The roots of a tree are not only for nutrient uptake and anchoring. Underground, an extensive network spreads through forests and plant landscapes. The so-called mycorrhizal network, a symbiotic association between fungi and plants, serves as a kind of "internet of the forest." Through this network, trees and plants can exchange nutrients and information to support and warn each other.
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 defenses.
But communication doesn’t stop at pest defense. Some studies have shown that plants can also influence the growth and development of other plants through chemical messengers known as allelochemicals. These substances can inhibit or promote the growth of competing plants, depending on what is most favorable for the survival of the emitting plant.
This constant dialogue between trees and plants shows how interconnected and complex life in our forests is.
So when we plant trees locally in 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 – it’s up to us to listen.
