Augusta National’s Turf: The Grass Used On The Course

Augusta National Golf Club uses a deliberate two-grass system: hybrid Bermudagrass (Tifway 419) on the fairways and rough, and Penn A‑4 creeping bentgrass on the greens. This combination creates the firm, fast, and consistent playing conditions that define the Masters. The grass choice varies by course area, and the maintenance program shifts across the year to keep both surfaces tournament-ready.

The Grass Types That Define Augusta’s Playing Surfaces

Fairways and Rough: Hybrid Bermudagrass

The fairways and rough are planted with Tifway 419 hybrid Bermudagrass (Cynodon dactylon × Cynodon transvaalensis). This variety was developed in the 1960s by Georgia turf researcher Dr. Glenn Burton and has been a staple at the club for decades. It is selected for:

• Dense, upright growth – Produces tight lies that reward clean contact and allow the ball to run out on approach shots. The leaf blades are finer than common Bermudagrass, reducing the chance of a “fluffy” lie.
• Heat and drought tolerance – Withstands Georgia’s humid summers with less water than many cool-season grasses. During August heat, Tifway 419 remains green with only moderate irrigation, whereas bentgrass would require constant syringing.
• Rapid recovery – Heals divots and foot traffic quickly, which is critical during tournament setup and member play. The stolons creep aggressively, filling bare spots within days under warm conditions.

Each fall, the Bermudagrass is overseeded with perennial ryegrass to maintain green color and playability through the winter when the Bermudagrass goes dormant. This overseeding is not a sign of weakness; it’s a planned part of the cycle that ensures the course looks its best for the Masters in April. The ryegrass used is typically a blend of ‘Manhattan’ and ‘Citation’ varieties, chosen for their fine texture and wear tolerance.

Greens: Penn A‑4 Creeping Bentgrass

The greens were switched from hybrid Bermudagrass to Penn A‑4 creeping bentgrass in 1999 after a two-year test on the practice putting green. The previous bermudagrass greens, though fast, exhibited grain that could push putts off line, especially in late afternoon. Bentgrass was chosen for its fine texture and ability to tolerate extremely low mowing heights (below ⅛ inch). The result:

• True, grainless roll – Putting surfaces have minimal deviation, even at high stimpmeter speeds. The absence of lateral growth means the ball tracks exactly where it is aimed, a key reason Augusta’s greens are considered the World’s most consistent.
• Year‑round consistency – Bentgrass doesn’t require overseeding, so the greens stay uniform from season to season. The same surface that hosts the Masters in April is the same surface members putt on in December.
• Firmness retention – The grass holds a dry, fast surface even in humid conditions, allowing approach shots to stop predictably. During the 2022 Masters, Scottie Scheffler’s approach on the 18th hole in the final round hit the front of the green and rolled only six feet—exactly the kind of controlled release the bentgrass enables.

How the Grass Selection Affects Playability

The two grass types directly shape the course’s character. Bermudagrass fairways stay firm, letting tee shots run and creating a tight second-shot lie. Bentgrass greens accept high-spin approaches but remain firm enough for the ball to release when needed. During Masters week, greens are mowed to 0.100–0.125 inch, producing stimpmeter readings above 13. For comparison, a typical municipal course stimps around 9–10.

The upright Bermudagrass rough also adds a distinct penalty: shots that land thick are hard to control, while balls sitting up are playable. This variation is intentional—it rewards precision and penalizes wayward drives in a predictable way. On the par-5 13th hole, a drive that misses the fairway by just a few yards can leave a lie where the ball sits down in the rough, forcing a layup instead of a go for the green.

Year‑Round Maintenance Challenges

Maintaining two different grass types requires a precise calendar and specialized equipment. The club’s agronomy team, led by a superintendent with decades of experience, follows a schedule that changes monthly.

• Mowing heights – Greens are mowed daily at about 0.100 inch during active growth. Fairways are kept at 0.375 inch (⅜ inch) to provide a clean lie without scalping. The rough is cut at 1.5 inches, but areas close to the fairway are stepped up gradually to avoid a harsh transition.
• Irrigation – A sub‑air system under the greens pulls moisture from the root zone, keeping the top ½ inch dry while deeper roots stay hydrated. This is a key reason the greens remain firm even after rain. The system was installed during the 1999 greens renovation and cost an estimated $1 million per green at the time.
• Overseeding process – In early fall, the Bermudagrass is scalped to ⅜ inch and overseeded with ryegrass at a rate of 15–20 pounds per 1,000 square feet. The club uses a slit‑seeding method to ensure good seed‑to‑soil contact. The ryegrass grows through winter and is gradually removed each spring using nitrogen management and mowing—not chemical growth regulators. During the 2023 spring transition, unseasonably cool temperatures delayed the ryegrass dieback, forcing the team to lower mowing heights on the fairways to 0.300 inch to encourage the Bermudagrass to emerge.
• Spring transition – As temperatures rise, the ryegrass naturally weakens and the Bermudagrass takes over. The club carefully adjusts fertility and mowing to avoid a weak, patchy look during the changeover. This period is the most sensitive of the entire year; a sudden freeze in late March can set the transition back by two weeks.

Applicability boundary: The grass combination described works only under Augusta’s climate and management budget. Courses in cooler zones (USDA zone 6 or below) may not be able to maintain Tifway 419 Bermudagrass year‑round, while courses in the Deep South may struggle to keep Penn A‑4 bentgrass alive through hot, humid summers without expensive cooling systems. Also, the playing conditions shift dramatically depending on the season: during the winter overseeding period (November–April), the fairways play softer and the rough is thicker, while summer play sees firmer, tighter surfaces.

Practical implication for course managers: If you are considering a similar two‑grass setup, the overseeding step is the most risky part of the cycle. The transition window in April (right around the Masters) can produce uneven turf if weather delays the ryegrass dieback or if the Bermudagrass emerges slowly. Many clubs choose to keep a single grass type (e.g., all Bermudagrass or all bentgrass) instead of managing the overseeding schedule, which adds labor and unpredictability. For example, Pine Valley uses a single type of bentgrass on fairways and greens, avoiding the transition entirely, but requires year‑round cool temperatures.

How to verify the specific grass type: Look at the leaf blade shape and growth habit. Bermudagrass has a distinct V‑shaped blade with fine hairs along the collar, while bentgrass leaves are narrower, with a boat‑shaped tip and a ridged upper surface. If you’re watching the Masters broadcast, the commentators often mention the grass type; you can also check the club’s historical maintenance reports (such as articles in Golf Course Management magazine). For a hands‑on inspection, visit Augusta National during a non‑tournament period (if you have access) and examine the area where fairway meets rough—you’ll see the dense, creeping stolons of Bermudagrass compared to the vertical, bunching growth of ryegrass.

Mismatch and trade‑off to anticipate: The overseeding program creates a temporary turf that is weak in the spring transition. If temperatures stay cool too long, the ryegrass refuses to die off, forcing the maintenance team to use lower mowing heights that can scalp the emerging Bermudagrass. This can lead to thin, patchy fairways in May. Additionally, the sub‑air system on the greens is expensive to install and maintain; most courses cannot justify the cost. Without it, bentgrass greens tend to hold moisture and become spongy, losing the firmness that makes Augusta’s greens famous. If you attempt to replicate the playing conditions without that infrastructure, the greens will likely be slower and less consistent.

Understanding the specific turf types and their management helps explain why Augusta National plays the way it does—fast, firm, and consistent. The choice of grass is not accidental, and the year‑round maintenance program is designed to deliver that performance under the unique demands of a major championship.