Survivor Peas exhibit reasonable winter hardiness. The viney plants grow thin and hollow stems up to 4-foot-long. They feature curled tendrils and purple to reddish-pink flowers. Peas are generally known for their Nitrogen-fixing capacity that provides an extra boost to your cover crop mix. This cool-season annual is capable of fixing over 200 pounds of nitrogen per acre. Survivor Peas are one of the most moisture efficient crops at producing biomass. Their root system improves water infiltration and the holding capacity of the soil.