Wheatgrass is a hardy perennial in USDA zones 2-10 but is often grown indoors. It is high in nutrients and contains iron, calcium, magnesium, amino acids, chlorophyll, and vitamins A, C ...

Researchers from the university said they planted two perennial grains — rye and wheatgrass — alongside three legumes — alfalfa, white clover, and sainfoin. According to the results ...