Woodland Flavors: Forest Soil and Cuisine

Among the many soils on our planet, forest soil is an underrated rockstar: thanks to fungi, it boasts the richest microbiome and maximum fertility.

When autumn comes, you see them again wandering off the hiking trails: mushroom pickers, those special kind of walkers. In a good year like 2025, Swiss forests yield plenty of treasures that would easily find their way onto the plates of fine-dining restaurants. It was warm, and there was enough rain — the perfect conditions for forest soil to perform at its best.

Compared to farmland or meadow soil, forest soil has a far richer microbiome. Beneath the tree canopy, a largely undisturbed universe of symbiotic microorganisms and powerhouse hybrids like fungi has evolved. In their calm efficiency, they keep a complex organism running and ensure the continuation of life across the entire Earth.

Forest Soil versus Farmland Soil

Farmland soils are often heavily altered by plowing, fertilizing, and monocultures. As a result, they lose organic matter, structure, and biodiversity. By contrast, forest soils live relatively undisturbed lives. Leaves, needles, and branches fall to the ground, slowly decompose, and enrich the soil with humus. Wildlife adds to the seasonal cycles with its species-specific activities and droppings. This continuous loop makes forest soils some of the most resilient and stable soil types. The same is true even in Switzerland’s many managed forests, though compaction and reduced diversity from monocultures limit the idyll.

Origins of the Most Fertile Soils

Switzerland hasn’t had primeval forests for a long time. But we still benefit from their former existence: the country’s most fertile soils — such as the deep, dark brown earths of the Swiss Plateau — are often former forest soils. Centuries of undisturbed humus buildup and fungal root networks (mycorrhiza) created nutrient wealth that made agriculture possible in the first place. Where forests were cleared, farmers initially reaped high yields; an advance drawn from nature’s savings account.

The Forest Microbiome

Forest soils are hotspots of microbial diversity. Billions of bacteria and fungi live in close symbiosis. Mycorrhizal fungi are especially important: they connect tree roots, extend their reach, and supply them with water and minerals. They host bacteria that support plant growth, and in return, receive sugars from photosynthesis. This network acts like the internet of the forest, distributing nutrients and even transmitting warning signals about pests.

Forest Cuisine: Eating from the Understory

For cuisine, the forest is a treasure chest. Mushrooms are the best-known representatives, but far from the only ones. Wild herbs like wild garlic, woodruff, and wood sorrel; berries such as blueberries and lingonberries; and nuts like hazelnuts have enriched our kitchens for centuries. Today, these ingredients are enjoying a revival — not only in haute cuisine but also in health-focused cooking. Secondary plant compounds, bitter agents, and the broad flavor spectrum of the forest diversify our diet.

“Forest cuisine” means embracing these primal flavors. Earthy, bold, and layered aromas define the menu — and you can almost taste that this food is good for you, enhancing wellbeing with vitamins and nourishing our own microbiome. Studies even show that a walk in the forest measurably lowers stress hormones. Bringing forest ingredients into the kitchen delivers a piece of that regenerative power straight to your plate.

Some of Switzerland’s most impressive forest experiences include the Sihlwald near Zurich and the beech forests of the Jura. The Sihlwald, Switzerland’s first wilderness park, is a wild, unmanaged forest that lets visitors feel how ecosystems regulate themselves. The Jura beech forests are showcases of the strength and beauty of native deciduous woods. They embody biodiversity that has become rare in Europe, and one can only hope their beauty will be preserved.

Rising Up for Better Protection

Nearly one-third of Switzerland’s land area is forest. Forests serve as habitats, CO₂ sinks, avalanche barriers, and water reservoirs. Sustainable forest management has a long tradition here: clear-cutting has been banned since the 19th century, and reforestation is mandatory. New approaches focus on close-to-nature forestry, leaving deadwood, fostering biodiversity, and using forest products with care. Linking cuisine and conservation can build bridges: those who value forest ingredients also develop awareness for protecting their source.

Delights from the Ground

Forest soils are the quiet powerhouses of our ecosystems. They are the origins of fertile soils, carriers of the richest microbiome, and the basis of a culinary abundance that strengthens our health and wellbeing. Talking about “forest cuisine” today means more than mushrooms and berries — it is about an attitude: seeing the forest as a partner whose silent work lays the foundation for a natural and meaningful life.

Further Reading

• Soil & Fertility: Swiss Federal Office for the Environment (BAFU): Soils of Switzerland – Status and Trends; WSL research reports on soil profiles.
• Microbiome & Mycorrhiza: Suzanne Simard: Finding the Mother Tree (2021); articles in Nature Ecology & Evolution on fungal networks; research projects at the University of Zurich.
• Forest Cuisine & Health: Swiss Society for Nutrition (SGE) on wild plants; research on Shinrin Yoku (Chiba University, Yoshifumi Miyazaki).
• Swiss Examples: wildnispark.ch (Sihlwald), BAFU documentation on the Jura beech forests.
• Forest Sommelier: Concept by Patrick Zbinden & Sara Sidler, info at waldsommelier.ch (coming soon).