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Annual Bluegrass

Annual Bluegrass IllustrationThis grassy weed (also called winter grass, poa annua, speargrass) is capable of growing at mowing heights lower than 1/4". It thrives in cool, moist weather or damp, shaded locations. It produces hundreds of whitish green seed heads at any mowing height. Because of its tolerance of close mowing and seed head formation, it is particularly troublesome on golf greens.

Their typical "boat-shaped" leaf tips, which curve up like the bow of a boat, are a distinguishing characteristic of the genus.

Annual Bluegrass Photo



Tends to grow in small clumps and seldom reaches heights greater than 10". The seeds appear delicate with no noticeable hairs.





Lawn and landscaping care