Grazing vetch aka Woolly pod vetch is an annual or biennial (rarely) leguminous plant. It produces most of its growth during autumn, winter and spring. It is most commonly used as grazing or hay production. The minimum rainfall requirement for these species is 350 mm per annum, provided that distribution correlates with its production curve.
Stands under irrigation or higher rainfall (500 – 700 mm per annum) show improved growth, when soils can freely drain.