Types Of St. Augustine Grass
St. Augustine grass is one of my favorite warm-season turfgrasses — it establishes quickly, makes a dense carpet, and tolerates shade better than most southern grasses. But not all St. Augustine is the same. Over the decades breeders have developed a variety of cultivars to improve color, cold tolerance, disease resistance, and texture. If you’re choosing lawn grass, knowing the different types of St. Augustine will help you pick the right one for your climate, soil, and maintenance style.
Why different types matter
Think of St. Augustine like apple varieties. They all do the same job, but some are sweeter, some are harder, some tolerate pests better. The main differences among St. Augustine types are blade width, growth habit, shade tolerance, salt tolerance, cold tolerance, and resistance to pests like chinch bugs and diseases such as brown patch or gray leaf spot. Choosing the right cultivar can save years of frustration.
Popular St. Augustine cultivars and what makes each one special
Floratam
Floratam is the classic fast-growing St. Augustine many people picture when they think of southern lawns. It has coarse blades, excellent heat and pest tolerance, and very good resistance to St. Augustine decline in the deep south.
- Best for: Hot, sunny lawns in the deep south and coastal areas
- Pros: Vigorous growth, drought and heat tolerant, resistant to certain diseases
- Cons: Not very shade tolerant, can be susceptible to chinch bugs in some regions, poor cold tolerance
Palmetto
Palmetto is one of my go-to recommendations for home lawns. It has finer blades than Floratam, is denser, and performs better in shade. It establishes from sod or plugs and maintains a neat appearance with moderate maintenance.
- Best for: Lawns with partial shade and homeowners who want a neat, tidy lawn
- Pros: Good shade tolerance, fine texture, lower mowing height
- Cons: Slightly less vigorous in full sun than Floratam
Raleigh
Raleigh was developed for improved cold tolerance and is commonly used in the transition zone where winters can be unpredictable. It has broad blades and tolerates cooler temperatures better than many other types.
- Best for: Northern edges of the St. Augustine zone and areas with occasional frost
- Pros: Better cold tolerance, attractive green color in spring and fall
- Cons: Less salt tolerant, can be thinner in heavy shade
Seville
Seville is a dwarf variety with a finer texture and denser growth habit, which makes it good for lawns where a manicured look is desired. It also tolerates moderate shade.
- Best for: Small urban lawns, areas with partial shade
- Pros: Dense growth, fine texture, good wear tolerance
- Cons: Can be a bit slower to spread than coarser varieties
Bitterblue
Bitterblue is prized for its deep blue-green color and medium-fine texture. It’s very attractive in a yard and performs well in both sun and some shade.
- Best for: Homeowners prioritizing color and appearance
- Pros: Attractive color, good overall performance
- Cons: May need attentive fertilization for peak color
Delmar
Delmar is a dwarf, salt-tolerant cultivar that does well in coastal landscapes. It has finer blades and can handle seaside conditions better than many other varieties.
- Best for: Coastal yards and areas with salt spray
- Pros: Salt tolerance, fine texture, good density
- Cons: May require more care in inland, high-traffic lawns
Captiva
Captiva offers a darker green color and a compact growth habit. It’s a newer option that balances good shade tolerance with attractive appearance.
- Best for: Homeowners who want a dark, lush lawn with lower mowing needs
- Pros: Dark color, lower growth habit
- Cons: Availability can vary by region
Other types and common terms
You’ll also hear references to “common” St. Augustine (older, unselected strains) and “sod” vs. “plugs” as ways to establish the lawn. Some growers sell regional selections with local names — always ask the nursery where the cultivar was tested.
How to choose the right St. Augustine for your yard
Match the grass to conditions:
- Sun vs. shade — choose Palmetto, Seville, or Captiva for more shade; choose Floratam for full sun.
- Coastal salt spray — look for Delmar or Floratam for salt tolerance.
- Cold-prone areas — Raleigh offers better cold resistance.
- Appearance vs. toughness — Bitterblue and Captiva for color; Floratam for toughness.
Maintenance matters. Dwarf varieties generally need less mowing and provide a finer, denser carpet, but they often require more precise cultural care (consistent watering and proper fertilization) to look their best.
Common problems and cultivar considerations
St. Augustine can be affected by chinch bugs, brown patch, and gray leaf spot. Some cultivars were developed specifically to resist these problems, and regional trials often show which varieties perform best locally. I always recommend asking local extension services or lawn pros which cultivar fares best in your town.
“I switched my front yard from Floratam to Palmetto five years ago. The shade under my oaks improved the lawn appearance immediately, and I cut back on watering. Sometimes the right variety makes all the difference.” — A gardener’s experience
Practical tips for planting and maintaining St. Augustine
When establishing a St. Augustine lawn:
- Install sod for fastest results, or use plugs if you’re on a budget and patient.
- Soil test before planting and correct pH and nutrients accordingly.
- Mow at the recommended height for the cultivar — generally 3 to 4 inches for many types.
- Water deeply and infrequently to encourage deep roots.
- Overseed is not effective — St. Augustine spreads by stolons, so repair bare patches with plugs or sod.
Final thoughts and my recommendation
There’s no single “best” type of St. Augustine. The best choice is the one that fits your site conditions and how much time you want to spend on maintenance. If you want low fuss and full sun, Floratam is a workhorse. If you have shade or want a finer texture, Palmetto, Seville, or Captiva are excellent. For coastal properties choose Delmar, and for colder transition zones try Raleigh.
Pick a cultivar tested in your region, start with good soil prep, and treat the lawn as a living system — attentive, but not over-managed. With the right type of St. Augustine, you can create a lush, forgiving lawn that gives back summer after summer.
