Barnyard Grass

Echinochloa crus-galli · Warm-season, annual, C4

AI-generated identification · may be incorrect
Barnyard Grass

Grass Category

Invasive/Weed

Hardiness Zones

USDA Zones 2-11, highly adaptable to diverse climates with complete topkill by frost.

About This Grass

Coarse, clump-forming annual growing 1 to 5 feet tall with flattened stems and bright green to yellowish leaves. Produces dense, branching panicles with bristly spikelets that often turn purple.

Blade Characteristics

Wide, flat, smooth blades lacking ligules and auricles, featuring a prominent midrib and pointed tips.

Growing Information

Growth Habit

Bunch-type, erect or leaning, rapid spreading by prolific seed production

Sunlight & Water Needs

Requires full sun and thrives in wet, poorly drained soils or high-moisture areas; highly adaptable.

Mowing & Maintenance

Acts as an aggressive agricultural weed requiring manual removal or selective herbicides, as low mowing encourages sprawling growth.

Identified on 10/3/2026