The stem is hairless and stands erect. P. arundinacea is a highly variable species, varying in height, size and shape of inflorescence, and coloration. With a little knowledge and some dedicated management, graziers can get some good use of it, he adds. Unimproved reed canary grass contains an alkaloid that grazing animals find unpalatable. This is an important factor in grazing management. Particularly well adapted to wet soils, it is also productive on upland sites. The native reed canary grass should not be totally eliminated, but no reliable method for telling the difference between the forms is known. One of the first grasses to sprout in the spring, reed canary grass produces a compact panicle 3-16 inches long that is erect or slightly spreading. If the grass is allowed to become more mature, animals will choose other grasses. Thanks, Sep 22, 2019 #2 Hens and Roos Herd Master. Joined Apr 19, 2012 Messages 5,482 Reaction score 5,191 In pure stands, reed canarygrass will respond to extremely high rates of nitrogen. Canary grass seed, or reed canary grass seed, is produced by Allied Seed. Grazing should take place early in the season, before the reed begins to loose quality and palatability. This grass … The flowers are Reed canarygrass produces high yields and grows very well in wetlands, and in well-drained soils, but it has two negatives. However, Schoth (1938) stated that reed canarygrass was primarily a pasture