These seeds are planted with the intent to improve the soil, add organic matter, and keep the soil active during times when food crops are not being grown. Ground Cover Seeds Blend Of 14 Varieties Cover Crops 113g For No-Till Garden Dutch White Clover Seeds NATURAL - All seeds are non-GMO, untreated and chemical free. Buy All Purpose Ground Cover Crops (113g) for No-Till Gardening, Green Manure, Ground Cover, Nitrogen Fixation - online on at best prices. Fast and free shipping free returns cash on delivery available on eligible purchase All Purpose Ground Cover crop seeds, also known as green manure seeds, are planted to cover the soil surface and help to minimize erosion and reduce weed growth in unused and overwintering garden beds. Cover cropping is one of the foundations of organic growing that exploits existing natural processes to improve and enrich garden soil. This cover crop is great for either fall or spring. Sow from the last average frost date and for up to 12 weeks later, and again in the fall, 6-8 weeks before the first frost date. Recommended to till the plants in before they bear seeds. A bag of 1/4 LB will cover about 125 square feet. CANADIAN - All seeds are selected for our Canadian climate For nitrogen fixation, allow the plants to reach flowering stage. .