Grey hair-grass

Grey hair-grass, known scientifically as Corynephorus divaricatus, is a perennial grass belonging to the Poaceae family. While often considered a wild species, in agricultural terms, it serves a critical function in land management, particularly for the reclamation and stabilization of degraded sandy soils that are unsuitable for intensive crop production.

The plant is native to the sandy habitats and heaths of Europe, where it has adapted to survive in environments characterized by low nutrient availability and high permeability. Its range of cultivation is largely defined by these specific soil conditions, as the plant thrives in areas where competitors are unable to establish due to the scarcity of water and nitrogen.

Botanically, the species is defined by its tussock-forming growth habit and narrow, bristle-like leaves. These adaptations are essential for water conservation in arid environments. Its root system is exceptionally efficient at anchoring the plant within unstable substrates, providing significant soil-binding benefits that assist in the prevention of wind-driven erosion.

The agronomy of this crop is distinct from traditional forage species. It requires minimal intervention, preferring sandy substrates with full exposure to sunlight. Cultivation practices focus on successful establishment by ensuring seeds are placed in areas where soil movement is not too severe during the germination phase. Because it thrives in nutrient-poor environments, excessive fertilization can actually be detrimental to its health.

Economically, grey hair-grass is primarily valued for its role in environmental engineering and soil conservation. Although it can provide limited grazing potential for livestock on extremely poor, extensive pastures, its main utility remains in land stabilization projects. It is notably resistant to most common crop diseases and pests, largely due to its survival in isolated and hardy ecological niches.

• High drought tolerance
• Excellent soil stabilizer
• Low input requirements
• Hardy in nutrient-deficient substrates