Grass Mix - Cabin Grass SeedCabin Grass Seed Mix AKA: Green Space Holder, Dryland Turf Mix, Erosion Turf Mix. This Cabin Grass Seed Mix is a blend of three low growing, very deep rooted grasses: Sodar Streambank Wheatgrass, Roadcrest Crested Wheatgrass & Sheep Fescue. These grasses are very hardy and can survive consecutive years of drought. In high elevations it should stay green all year long. In lower elevations it is naturally green from fall to spring, they will stay green