Ryegrass is the predominant species in seed mixtures on the sown grasslands of Southland. The area is one of the largest tracts of naturally uniform good land in New Zealand. It includes a wide area of level plains chiefly in the Western and Northern Districts the Eastern Districts. with rolling ridges largely confined to The greater part of it is a heavy clay loam, resting upon clay subsoil, which requires draining. The Northern Districts contain a fairly high proportion of lighter loam and shingly soil.
