Cover Crops

Cover crops are non-cannabis plants cultivated between cannabis growing cycles or in integrated cultivation systems to improve soil health and structure. Common cover crop species include legumes (nitrogen-fixing), grasses, and brassicas, which breeders and cultivators use to manage nutrient cycling, reduce pathogenic pressure, and suppress weeds without chemical intervention. Cover cropping is a horticultural practice rather than a cannabis genetics trait, but it directly influences the soil environment where cannabis genetics express phenotypic potential. Breeders working with outdoor or regenerative cultivation systems often document cover crop rotations as part of strain development protocols, since soil biology affects cannabinoid and terpene profiles across generations. This practice is particularly relevant in breeding programs emphasizing environmental stability and terroir consi

Breeders managing multi-generational selection in outdoor or mixed-light systems use cover crops to standardize growing conditions and reduce genetic drift caused by nutrient deficiency or soil-borne pathogens. Detailed cover crop documentation in breeding records helps isolate genetic traits from environmental variables.