The mix must contain at least 2 species from two or more of the plant families below:

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• Brassicas; Mustard, Radish, Turnip, Forage Rape, Kale

• Legumes; Clovers, Vetch, Birdsfoot Trefoil, Sainfoin, Lucerne, Beans

• Grass or Cereals; Italian or Hybrid Rye Grass, Black Oats, Forage Rye, Barley, Triticale

• Herbs; Chicory, Burnet, Plantain, Sheep Parsley, Yarrow (slow to establish and expensive)

• RPA also list Phacelia, Buckwheat and Linseed