Bahiagrass
Paspalum notatum · Warm-season, Perennial, C4 grass
AI-generated identification · may be incorrect
Grass Category
Pasture, Erosion Control, and Low-Maintenance Lawn Grass
Hardiness Zones
Thrives in USDA Hardiness Zones 8 through 11. Highly sensitive to prolonged freezing temperatures, going into winter dormancy and losing color with the first frost.
Grass Family
Poaceae, subfamily Panicoideae, tribe Paniceae
Variety / Cultivar
Argentine (wider blades, darker green) or Pensacola (narrower blades, superior cold tolerance)
About This Grass
Forms a coarse, somewhat open turf with upright flowering stems. Unmowed height can reach 24 to 30 inches, while maintained turf is kept around 2 to 3 inches. Color ranges from light to medium apple green. The most distinctive feature is the characteristic Y-shaped or inverted V-shaped seed head consisting of two (sometimes three) spicate racemes resembling a pitchfork or bird's foot.
Blade Characteristics
Blades are flat to folded, coarse in texture, typically 3 to 10 mm wide, with smooth margins except near the base. Tip is pointed. Vernation is rolled in the bud. The ligule is a short, membranous fringe backed by a band of fine hairs, and auricles are absent.
Root System
Extremely deep, tough, and extensive fibrous root system with strong rhizomes. Provides exceptional drought survival and excellent erosion control on sandy, nutrient-poor soils. Establishes easily from seed but develops a thick, wiry thatch layer over time.
Growing Information
Origin Region
Native to South America, particularly Argentina and Brazil; widely naturalized and cultivated across the Southeastern United States, Gulf Coast, and tropical/subtropical regions worldwide.
Growth Habit
Stoloniferous and rhizomatous, spreading aggressively via stout, scaly rhizomes and above-ground stolons to form a tough, coarse turf mat.
Sunlight & Water Needs
Requires full sun for optimal growth, though it exhibits moderate shade tolerance compared to other warm-season grasses. High drought tolerance once established due to deep roots; requires moderate moisture to stay green but can go dormant and turn brown during severe dry spells, greening up rapidly upon receiving water.
Mowing & Maintenance
Ideal mowing height ranges from 2.0 to 3.0 inches using a sharp rotary mower (its tough seed stems dull blades quickly). Low maintenance requirements; needs minimal fertilization (1-2 lbs N per 1000 sq ft annually) and infrequent irrigation.
Special Characteristics
Good wear tolerance and excellent recovery capacity due to rhizomes. Highly resistant to many common turf diseases and pests like mole crickets (though susceptible to the bahiagrass decline fungus under certain conditions). Very tolerant of acidic, low-fertility, sandy soils.
Ecological Information
Introduced species in North America, often used for highway stabilization and pasture forage for livestock. Provides moderate wildlife value for grazing herbivores and ground-nesting birds, but can act as a persistent weed in finer manicured lawns due to its aggressive growth and unsightly tall seed heads.