Thos box contains a mixture of 5 different green manure varieties used to suppress weeds, fix nitrogen and add organic matter to your soil. Cut back at the start of flowering (about 40-50 days after germination) and after a couple of days dif in to 20cm depth with a hoe. The ground is then prepared for seeding your flowers and vegetables. To be sown in Spring and Autumn. The box has enough seeds for 30sqm coverage.