Jumbo is a higher yielding, later maturing, and winter-hardy modern tetraploid variety suitable for both grazing and mechanical harvesting. The superior rust resistance of Jumbo in varied environments is legendary. Jumbo has consistently performed well in forage trials throughout the annual ryegrass growing regions of the U.S. Jumbo exhibits cold tolerance, vigorous growth habit and high forage yields. The variety is suitable for mechanical harvesting (silage) as well as grazing. Annual ryegrass is normally planted from September through November. The recommended seeding rate is 20-30 lbs. per acre in a well-prepared seedbed. The ideal sowing depth is 1/4". Broadcasting and no-till are two of the most popular planting methods. Once established, grazing a Jumbo pasture should commence at a height of 8-9".