Buckwheat is a broadleaf plant that serves as an excellent “smother crop” to control weeds and conserve soil moisture. It is fast growing—maturing in 6-8 weeks—and a good choice for areas that might be left bare over the summer. Its white flowers attract pollinators and other beneficial insects and can be used in flower arrangements. It will re-seed if mature seeds fall to the soil. Plant buckwheat in spring or early summer.