The use of cover crops is a strategy that all gardeners should pursue regardless of whether you are growing in a small patio planter or in a large back yard space. The benefits of a cover crop are many. They provide weed control, can provide a nitrogen source and help build organic matter which in turn increases soil structure.
All during these processes they scavenge and cycle nutrients from deeper down within the soil making them available to the root zone. In addition, seeds can be sprouted and blended up with water to make an enzyme rich foliar spray that is readily absorbed by the plants leaves.