Bermuda Grass 101

Everything you need to know about maintaining beautiful Bermuda grass

Monthly Maintenance Calendar

Month Mowing Fertilization Pre-emergent Post-emergent Aeration Other Tasks
January Mow only if needed None needed None needed Winter weed control None needed Turn off irrigation
February Mow only if needed None needed Apply for summer weeds None needed None needed Prepare equipment
March Begin regular mowing First app after 2-3 mowings Second app for summer Use with caution Too early Irrigation audit
April Mow at 1-2" weekly 0.5-1.0 lb N/1000 sq ft None needed Spot treat as needed Wait for warmer soil Begin watering
May Mow at 1-2" weekly 0.5-1.0 lb N/1000 sq ft None needed Spot treat as needed Ideal time Monitor growth
June Mow at 1-2" weekly 0.5-1.0 lb N/1000 sq ft None needed Spot treat as needed Good if needed Check for insects
July Mow at 1-2" weekly 0.5-1.0 lb N/1000 sq ft None needed Spot treat as needed Too hot Check for grubs
August Mow at 1-2" weekly 0.5-1.0 lb N/1000 sq ft None needed Last application Too hot Monitor pests
September Mow at 1-2" weekly Last application Apply for winter weeds None needed Too late Reduce watering
October Mow as needed None needed Second app for winter Spot treat winter weeds Too late Prepare for dormancy
November Mow only if needed None needed None needed Winter weed control None needed Turn off irrigation
December Mow only if needed None needed None needed Winter weed control None needed Equipment maintenance
Note: This calendar serves as a general reference point for Bermuda grass maintenance. Many enthusiasts may opt for more intensive care practices, such as lower mowing heights, increased mowing frequency, or higher fertilization rates. Feel free to adjust these guidelines based on your lawn's specific needs and your maintenance goals. The key is finding what works best for your particular situation while maintaining good cultural practices.

Fertilizers

Unlocking the Secrets to Fertilizing Your Bermuda Grass Lawn

A lush, green Bermuda grass lawn is every homeowner's dream, and achieving it requires more than just watering and mowing. The secret lies in understanding your lawn's unique fertilizer requirements and applying the right nutrients at the right time. Here's a comprehensive guide to mastering Bermuda grass fertilization.

The Big Three: Nitrogen, Phosphorus, and Potassium

Bermuda grass thrives when it gets the right balance of three key nutrients:

  • Nitrogen (N): Promotes vibrant green growth and denser grass, powering chlorophyll production for photosynthesis.
  • Phosphorus (P): Supports root development and energy transfer, essential for new lawns and early growth stages.
  • Potassium (K): Strengthens cell walls, improves stress tolerance, and boosts resilience against diseases, drought, and extreme temperatures.

Meeting Bermuda Grass's Nitrogen Needs

Nitrogen depletes quickly, making it the centerpiece of your fertilizer schedule. However, the amount you apply depends on your lawn’s condition and goals:

  • Thin Lawns: Apply 1.0-1.5 lbs of nitrogen per 1,000 square feet each month to encourage rapid growth and fill in gaps.
  • Mature Lawns: For a well-established lawn, 0.5 lbs per 1,000 square feet monthly will maintain its health without excessive growth.

Cracking the Code: Reading Fertilizer Labels

Fertilizer bags display an N-P-K ratio, indicating the percentages of nitrogen, phosphorus, and potassium by weight. For example, a 32-0-4 fertilizer contains:

  • 32% Nitrogen: Essential for growth.
  • 0% Phosphorus: Ideal unless your soil test shows a deficiency.
  • 4% Potassium: Useful but low, requiring careful application to avoid over-fertilizing with nitrogen.

Pro tip: Use a soil test to fine-tune phosphorus and potassium needs, ensuring you only add what’s necessary.

Choosing Between Slow and Fast-Release Nitrogen

Nitrogen comes in two main forms, each with distinct advantages:

Slow-Release Nitrogen
  • How It Works: Gradually releases nutrients over 4-8 weeks.
  • Benefits: Fewer applications, steady growth, and a lower risk of burning your lawn.
  • Best For: Maintaining established lawns.
  • Examples: Polymer-coated urea, Milorganite (organic option).
Fast-Release Nitrogen
  • How It Works: Delivers a quick boost but depletes in 2-3 weeks.
  • Benefits: Immediate greening and lower cost.
  • Drawbacks: Requires more frequent applications and carries a higher risk of burn.
  • Best For: Quickly filling in thin or patchy lawns.
  • Examples: Urea (46-0-0), Ammonium Sulfate (21-0-0).

Fertilization Techniques: Granular vs. Liquid

Granular Fertilizers: Easy to apply and suitable for steady nutrient release, but uptake depends on soil properties.
Liquid Fertilizers: Dissolve quickly, providing faster results via foliar application. Ideal for spoon-feeding, where small amounts of nitrogen are applied weekly to maintain consistent growth.

Tip: Always water the lawn immediately after applying liquid fertilizer to improve nutrient uptake and prevent burn.

Tailored Fertilizer Schedules

The right schedule depends on your lawn's needs and your desired results:

  • For Maintenance: Apply slow-release nitrogen monthly or granular urea every 6-8 weeks.
  • For Growth Push: Use fast-release options like ammonium sulfate every 2-3 weeks.
  • For Maximum Growth: Try weekly liquid applications with small nitrogen doses.

Irrigation

The Ultimate Guide to Watering Bermuda Grass

Watering your lawn may seem straightforward, but there’s more to it than just turning on the sprinklers. The amount of water your Bermuda grass needs can vary depending on weather and soil type.

How Much Water Does Bermuda Grass Need?

Bermuda grass generally requires around 1 inch of water per week, either from rainfall or irrigation. This can vary based on weather conditions.

Seasonal Adjustments

Season Watering (inches per week) Frequency
Spring 0.5 – 0.75 Weekly
Summer 1 – 1.5 2-3 times a week
Fall 0.5 – 1 Weekly
Winter Minimal Rarely

Just use a smart controler.

Honestly, save yourself some headspace and get a smart controller. Modern ones monitor weather and soil type and handle the watering for you. Not only will it be more convenient, but you will save so much money on watering since a well-calibrated controller applies just the right amount, while preventing runoffs.

Don't ask 'HOW LONG TO WATER', please!

Water pressure and sprinkler heads can affect how much water flows through your system. For this reason, the amount of water that flows in a minute can vary significantly from household to housefold. Instead of focusing on watering time, focus on inches of water. Notice how we've been using inches of water, and never time on this site. To accurately measure an inch of water, simply use the tuna can test. Place empty tuna cans around your lawn and measure how much water is applied in a set period. Adjust your watering time to ensure 1 inch per week.

Water few days make them count!

You want water to penetrate into the soild so your grass can absorb it. To accomplish this, water deeply and less frequently. Deep watering promotes robust root systems and helps prevent weeds. Watering daily not only costs more money, but is likely to give you poor results.

Soil Considerations

Sandy soils may require more frequent watering, while clay soils need less frequent but longer durations. Use soaking cycles to prevent runoff, especially for sloped lawns. Again, most smart controllers can help prevent runoff with default settings.

Water before the sunrise

The best time to water is early morning, finishing before sunrise. Avoid watering during the day to reduce evaporation or in the evening to prevent fungal growth.

Herbicides

When weeds have already sprouted in your Bermuda grass lawn, post-emergent herbicides become your go-to solution. These products target weeds that are visible above the soil, killing or controlling them without harming your Bermuda grass. Below, we explore the most effective post-emergent herbicides for Bermuda grass and provide tips for their use.

Top Herbicides for Bermuda Grass

  • Celsius: Highly effective against a broad range of weeds with no temperature restrictions. However, it takes 2-3 weeks to show visible results.
  • Certainty: Excellent for grassy weeds like poa annua and nutsedge, also with no temperature restrictions. Best paired with Celsius for comprehensive weed control.
  • 2,4-D: A budget-friendly option for broadleaf weed control, but with temperature limitations.
  • Quinclorac: Perfect for crabgrass and St. Augustine weeds, performing better than Celsius in hotter climates.
  • Sulfentrazone: Targets nutsedge and resistant weeds with quick results but comes at a higher cost.
  • Negate 37WG: Great for perennial ryegrass and offers selective action, though results may take time.

Application

  • Identify the weed: Use apps like Google Lens to identify the weeds in your lawn and choose the appropriate herbicide.
  • Follow label instructions: Pay attention to application rates and temperature restrictions for optimal results.
  • Use proper equipment: Spot-spray with a pump sprayer for small infestations or use a backpack sprayer for broader coverage.
  • Additives: Consider using a surfactant, blue dye, and acidifier (like white vinegar) to enhance effectiveness.

Pre-emergents

Maintaining a weed-free, vibrant Bermuda grass lawn requires thoughtful planning and the right tools. One of the most effective ways to combat weeds is through the use of pre-emergent herbicides, which prevent weed seeds from germinating. Let’s explore the top pre-emergents for Bermuda grass, how to apply them, and special considerations for overseeding with ryegrass.

What Are Pre-Emergents?

Pre-emergent herbicides form a chemical barrier in the soil that stops weed seeds from sprouting. They don’t kill existing weeds but act as a preemptive defense against unwanted growth. For post-emergent weed control, a different type of herbicide is required.

Top Pre-Emergents for Bermuda Grass

  • Barricade (Prodiamine): Offers long-lasting control against a broad range of weeds. A top choice for spring applications.
  • Specticle Flo (Indaziflam): Provides excellent residual control and is especially effective against Poa annua. A go-to option for fall applications.
  • Dimension (Dithiopyr): Helps prevent weeds and controls early-stage crabgrass.

Note: Research indicates pendimethalin, oryzalin, and dithiopyr may suppress Bermuda grass quality more than oxadiazon and prodiamine.

Application Tips

  • Wash-In Requirement: Pre-emergents must be watered into the soil to activate. Apply them alongside other products requiring a wash-in for convenience.
  • Granular vs. Sprayable Forms: Pre-emergents are available in granular and sprayable forms. Sprayable options generally provide better coverage and precision.

How to Apply Pre-Emergents

Spring Application: Prodiamine

Prodiamine is an excellent choice for spring. Use the following schedule for optimal results:

When Quantity
50°F soil temp 0.3 oz per 1,000 sq. ft.
30–60 days later 0.3 oz per 1,000 sq. ft.
Optional summer application 0.2 oz per 1,000 sq. ft.

For extended coverage, split the application: half before soil temps hit 55°F and half after.

Fall Application: Specticle Flo

Specticle Flo is perfect for combating winter weeds like Poa annua. For best results, follow this split-application schedule:

When Quantity
80°F soil temp 2–3 mL per 1,000 sq. ft.
30–45 days later 2–3 mL per 1,000 sq. ft.
30–45 days later 2–3 mL per 1,000 sq. ft.

Pro Tip: Use a syringe for precise liquid measurements. If cost is a concern, consider splitting the purchase with other lawn care enthusiasts.

When to avoid Pre-emergents

Pre-emergents attack roots. While this is great for weeds, grass isn't immune to this (i.e. ryegrass seeds) or roots from sod. If you're planning on overseeding or laying sod, just skip pre-emergent and manage your weeds with herbicides. Some pre-emergent can effects lasting 10 months, so check with label.