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Overseeding Bermuda with Rye

Why Overseed?

 

Bermuda thrives in warm weather but turns brown and dormant once soil temperatures drop in the fall. Ryegrass fills this gap, providing a green, attractive lawn through winter. Beyond appearance, ryegrass helps prevent erosion, protects soil, and offers a playable or usable surface year-round.

When and How to Plant

The ideal planting window for overseeding is late September through mid-October in West Texas, when nighttime lows are in the 50s and daytime highs range from the 70s to 80s. Plant too early and seedlings may suffer from heat stress; plant too late and frost can prevent establishment.

Steps for Success:

  1. Mow Low Scalp Bermuda to ½ - 1 inch to expose soil and reduce competition.

  2. Clean Up Remove clippings and thatch for good seed-to-soil contact.

  3. Seed Evenly Apply 8 - 10 lbs. of ryegrass per 1,000 sq. ft. for lawns. Sports turf or golf courses may use heavier rates.

  4. Starter Fertilizer Apply BES-TEX 12-24-12 at seeding. The phosphorus promotes strong root development and quick establishment.

  5. Water Properly Light, frequent irrigation until germination, then transition to less frequent, deeper watering.

Fertilization Through Winter

Once established, ryegrass requires steady feeding to maintain color and density. BES-TEX recommends 16-8-8 fertilizer at 6 lbs. per 1,000 sq. ft. every 4 - 6 weeks. This blend supplies nitrogen for green color, phosphorus for continued root strength, and potassium for overall turf resilience.

Ryegrass Types

Annual Rye (example: Gulf Annual)

  • Why it’s called annual: It completes its life cycle in one season and dies naturally in late spring.

  • Advantages: Germinates quickly, inexpensive, provides fast winter cover.

  • Limitations: Coarser leaf texture, shorter lifespan, less attractive than perennial rye.

  • Best Use: Budget-friendly winter lawns or erosion control.

Perennial Rye (example: Futura 2000)

  • Why it’s called perennial: Genetically capable of surviving multiple seasons, though in Texas it usually fades out by summer heat.

  • Advantages: Fine leaf blade, darker green color, more disease-resistant, premium appearance.

  • Limitations: Higher cost, slightly more management required.

  • Best Use: High-quality lawns, golf courses, athletic fields.

Transitioning Back to Bermuda

In spring, ryegrass competes with Bermuda for sunlight, water, and nutrients. To ensure a strong Bermuda comeback:

  • Mow Rye Short Late March to early April, reduce mowing height to stress ryegrass.

  • Reduce Inputs Cut back on water and fertilizer for rye so Bermuda gains the advantage.

  • Herbicide Options For a cleaner, faster transition, selective herbicides may be used (always follow the label):

    • Katena™ (Flazasulfuron)  ALS inhibitor (Group 2). Targets perennial ryegrass in Bermuda. Rate: 0.75 -  1.5 oz./1,000 sq. ft.

    • Revolver® (Foramsulfuron)  ALS inhibitor (Group 2). Excellent for spring transition. Rate: 0.4 - 0.8 oz./1,000 sq. ft.

    • Monument® (Trifloxysulfuron)  ALS inhibitor (Group 2). Controls ryegrass and other cool-season grasses. Rate: 0.002 - 0.012 oz./1,000 sq. ft. (extremely small amounts pre-measured packets are often used).

Pro Tips for Success

  • Maintain rye at 1½ - 2 inches mowing height for density and appearance.

  • Limit heavy foot traffic during establishment seedlings are tender.

  • Avoid overwatering shift from light/frequent irrigation to deeper, less frequent once turf is established.

  • Begin reducing rye maintenance in March so Bermuda takes over smoothly.

Final Note
Overseeding is optional, but it’s an effective way to keep lawns and landscapes green and healthy while Bermuda rests. With proper timing, the right rye variety, BES-TEX fertilizers, and a planned spring transition strategy, you can enjoy a winter lawn that looks great and supports a strong Bermuda comeback in summer.


Monte Sims
BES-TEX Supply
4512 Adobe Dr., San Angelo, TX 76903
325.653.1300 | www.BES-TEX.com