Southern States® Hallmark OrchardgrassSouthern States Hallmark Orchardgrass is a hardy perennial bunchgrass that grows 2 to 3 feet tall. Its major uses include pasture and hay, and forage quality is high under good pasture management. Plant Southern States Hallmark Orchardgrass seed in early fall and it will perform well for your grazing livestock come early spring, even in pastures with moderate to low drainage.