How do plants talk to each other?
It sounds like the beginning of a children’s story, but it is also one of the most fascinating questions in biology. Plants do not have mouths, ears, or nervous systems like animals. They do not walk across the forest to warn a neighbour. They do not shout when danger arrives. Yet plants are not silent. They sense light, touch, moisture, damage, chemicals, and the presence of other living things. Their world is full of messages; we are simply not trained to hear them.
Some plant messages move through the air as chemical scents. When a leaf is chewed by an insect, certain plants can release volatile compounds that may influence nearby plants or attract predators of the insect. Some messages move through roots, where plants respond to nutrients, water, and neighbouring root systems. But one of the most poetic pathways is underground, through fungi.
Many plants live in partnership with mycorrhizal fungi. The plant provides sugars made through photosynthesis. In return, the fungus helps the plant reach water and nutrients, especially phosphorus and nitrogen, through fine branching threads called hyphae. These threads are much thinner than roots and can explore soil spaces that roots cannot easily enter. Over time, fungal threads can link with the roots of multiple plants, creating shared underground networks.
This is the idea often called the “wood wide web.” It is a beautiful phrase because it helps us imagine a forest as something connected, not as a group of isolated trees standing politely apart. Through fungal networks, resources and chemical signals may move between plants. In some studies, warning-related signals, carbon, and nutrients have been shown to travel through mycorrhizal connections. The science is still careful and evolving; the forest is not sending emails. But the basic idea is powerful: underground fungal life can change how plants experience one another.
Hidden scale
Recent global estimates suggest that arbuscular mycorrhizal fungal networks may stretch over 100 quadrillion kilometres worldwide. If imagined as one straight thread, that distance has been compared with a significant fraction of the width of the Milky Way.
This scale is difficult to hold in the mind. We step on soil as if it is a surface. In reality, it is a living architecture. A teaspoon of healthy soil can contain metres of fungal hyphae. Across forests, grasslands, gardens, and wild places, these threads form a hidden infrastructure that supports plant life. They are not decorative. They are not an extra layer. They are part of how ecosystems function.
What makes fungi so important is their position between worlds. They are not plants, and they are not animals. They are decomposers, partners, recyclers, bridge-builders, and negotiators. They help break down organic matter. They move nutrients through soil. They support roots. They influence carbon storage. They make the underground world more connected than it appears from above.
The most significant growth is invisible
This is perhaps the lesson fungi keep teaching us. The most significant growth is not always the part we can see. A tree’s height matters, but so does the root. A mushroom cap catches the eye, but the mycelium below may be the deeper story. Human life is similar. The visible result is only the final surface: the business, the body, the harvest, the decision, the meal, the finished thing. Beneath it are relationships, habits, quiet work, patience, failure, repair, and support.
Plants “talk” because life is relational. No organism exists entirely alone. The forest is not just a collection of individuals; it is a community of exchanges. Some exchanges are generous. Some are competitive. Some are still mysterious. Fungi remind us that connection does not need to be loud to be real.
At Manes & Morrel, this hidden world feels central to the story of mushrooms. Fungi ask us to look again at what we usually ignore. Soil is not dirt. Roots are not passive. Mushrooms are not random appearances after rain. Underneath ordinary ground, there may be a living web of exchange, quietly shaping the health of forests and the future of plants.
Perhaps that is why mushrooms feel so wise. They do not simply grow; they connect. They do not simply appear; they reveal. And sometimes, the most important message from the forest is this: what is unseen may be holding everything together.