Green Foxtail
Setaria viridis · Warm-season, annual, C4
AI-generated identification · may be incorrect
Grass Category
Invasive/Weed
Hardiness Zones
USDA zones 3 to 10; strictly an annual completing its lifecycle in one season.
About This Grass
Forms dense, fine-textured clumps up to 2 feet tall with bright green foliage and distinct bristly, cylindrical seed heads.
Blade Characteristics
Narrow flat blades with pointed tips, smooth margins, membranous ligule, and no auricles.
Growing Information
Growth Habit
Bunch-type, upright habit spreading via prolific seed production.
Sunlight & Water Needs
Requires full sun and moderate moisture, though highly adaptable to various soil types and pH levels.
Mowing & Maintenance
High maintenance weed; controlled by frequent low mowing, pre-emergent herbicides, and hand pulling before seed set.
Identified on 10/3/2026