Sunn Hemp (Crotalaria juncea)
In this video, Colin Mitchell and Lindsey Richards from the Subtropical Soil Health Initiative lay out how to plant, maintain, and terminate Sunn Hemp in the hot subtropical climate of the Texas Rio Grande Valley. Sunn Hemp (Crotalaria juncea) is a warm season nitrogen fixing species that can reach over six feet tall. This upright legume creates substantial biomass that can outcompete weeds, can be grazed as a high protein forage, and is resistant to root rot nematodes. It can be terminated with a crimper-roller, making it a good option for organic systems that are not allowed to use herbicides.