Japanese Stiltgrass
Microstegium vimineum · Warm-season annual, C4
AI-generated identification · may be incorrect
Grass Category
Invasive/Weed
Hardiness Zones
USDA Zones 5 through 9, highly adaptable to temperate and subtropical climates with winter die-back of the annual growth.
About This Grass
Forms lax, bright green patches up to 3 feet tall with a delicate bamboo-like appearance, producing slender spike-like seed heads in late summer.
Blade Characteristics
Flat, lance-shaped blades up to 3 inches long and 0.5 inches wide, featuring an off-center silvery midrib on the upper surface.
Growing Information
Growth Habit
Stoloniferous, spreading rapidly by rooting at the nodes to form dense, sprawling mats.
Sunlight & Water Needs
Thrives in full shade to partial sun in moist, fertile soils, but tolerates a wide range of light and soil conditions.
Mowing & Maintenance
Responds well to frequent low mowing, but eradication requires preventing seed set through pulling, herbicides, or timely cutting.