Mowing Height
Irrigation
Shade Tolerance
St. Augustinegrass
Stenotaphrum secundatum
Introduction
St. Augustinegrass is a warm-season turfgrass prized for its thick, lush appearance and excellent performance in coastal and southern climates. Its broad blades, deep green color, and dense growth create a carpet-like lawn ideal for warm, humid regions. Known for its shade tolerance among warm-season grasses, St. Augustine establishes quickly from sod and offers a soft, inviting texture for residential landscapes.
Identification
St. Augustinegrass has broad, flat leaf blades with rounded tips and a coarse texture. It spreads primarily by above-ground stolons, forming a dense mat that crowds out most weeds. The grass has a blue-green hue in healthy conditions, and its stolon network gives it a distinctive, thick canopy. While it performs best in warm, humid environments, it goes dormant and turns brown in cooler temperatures.
Climate Adaptation
This grass thrives in the southern and coastal regions of the United States, particularly along the Gulf Coast, Florida, and the Carolinas. St. Augustinegrass prefers warm temperatures, moderate rainfall, and humidity. It does not tolerate frost or prolonged cold and performs best in areas where winter temperatures rarely fall below freezing.
Advantages
- Excellent heat and humidity tolerance
- One of the most shade-tolerant warm-season grasses
- Dense, lush growth suppresses many weeds
- Quick establishment from sod
- Soft texture and vibrant green color ideal for home lawns
Challenges
- Poor cold tolerance; can be damaged by frost or freezing
- Susceptible to chinch bugs and fungal diseases like brown patch
- Requires moderate to high fertility for best appearance
- Does not tolerate heavy traffic or compacted soils well
- Coarse texture compared to finer warm-season grasses
