Barnyardgrass, also called watergrass, is a warm-season annual weed that is usually found in poorly managed lawns of low fertility. It reproduces by seeds and develops into a plant with a shallow root system. Although the natural growth habit of barnyardgrass is upright, when mowed regularly it forms ground-hugging mats. Its reddish purple stems grow up to 3 feet long. The smooth leaves are 1/4 to 1/2 inch wide, with a prominent midrib.
Improve soil fertility and maintain a dense, healthy lawn by following recommended lawn care practices.
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