Easy and outstanding summer cover crop, nurse crop, and bee plant. Buckwheat is one of the few plants with the ability to extract phosphorus from rock. (Most plants require it in bioavailable form.) Easily turned under with a spade--no plow needed--and breaks down fast in the soil, improving both texture and fertility markedly. Can be planted in short windows between crops and still make enough growth to be a good cover and soil-builder. If you have a month or so between spring and fall crops on a bed, plant buckwheat. If you are putting out summer crops that will take awhile to fill their space, buckwheat is a great way to smother weeds, distract pests, and make a living mulch. All that and edible grain too!