Herbal leys are diverse forage mixtures designed to improve soil health, enhance livestock nutrition, and build more resilient grazing systems. This is achieved by combining grasses, legumes, and deep rooting herbs, herbal leys offer a more balanced and sustainable alternative to traditional grass only medium to long term swards. They are increasingly popular in modern farming due to their ability to support biodiversity, reduce fertiliser dependence, and improve long-term pasture productivity.

Key species such as sainfoin and ribwort plantain play an important role in herbal ley mixtures. Sainfoin is a highly palatable legume that provides excellent protein for grazing livestock while also offering natural anthelmintic properties, which may help reduce parasite burdens. Plantain is a deep-rooting herb known for its ability to access nutrients and moisture from deeper soil layers, making it particularly valuable in dry conditions. It also contributes beneficial minerals to livestock diets and supports soil structure by improving aeration and water movement.

Other commonly included species such as chicory and clovers further enhance the nutritional profile and resilience of the sward. Chicory is especially valued for its drought tolerance and deep rooting system, while clovers fix atmospheric nitrogen, helping to naturally improve soil fertility and reduce the need for synthetic inputs.

When selecting a herbal ley mixture, it is essential to choose one that is suited to your specific soil type and farming system. Soils vary significantly in pH, drainage, and nutrient availability, and using the wrong mix can limit establishment and long-term performance. For example, lighter sandy soils benefit from drought tolerant, deep-rooting species, while heavier clay soils require mixtures that can cope with poorer drainage and compaction. Matching the herbal ley to your soil conditions ensures stronger establishment, improved persistence, and better overall productivity from your grazing system.