Premium Brassica Blend is a blend of rape, kale, purple top turnips and annual clover. Forth Seed Company’s Brassica Blend was designed for outstanding attraction, growth and palatability during your fall and winter months. Once the first freeze occurs, the brassica starches are converted to sugars, providing maximal attraction, and nutrition on your hunting property. Brassica Blend grows best in soils with adequate nitrogen and moisture.