Linseed, or Flax (Linum usitatissimum) is a blue flowered annual plant grown as an oilseed crop, for feed and fibres which are used to make linen. Linseed is an excellent break crop and can slot into most rotations with ease. It suits most soil types and has a good yield and standing ability. It has a flexible sowing window which allows the crop to be sown when conditions are ideal. LInseed can have a positive effect on black grass control. Linseed is often used pre to wheat. Even though it does not leave any Nitrogen behind, it does leave a seed bed that requires little or no additional cultivation.