How to kill buffalo grass

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Buffalo grass is known for its durability and lush appearance, making it a favourite choice for many Australian lawns. But what happens when this resilient grass starts taking over areas it shouldn't? Whether it’s creeping into your couch or Kikuyu lawn, or you're simply ready to replace it with something new, getting rid of buffalo grass can be tricky. If you've been battling unwanted buffalo patches, you're in the right place. 

This comprehensive guide will walk you through the most effective ways to kill buffalo grass—whether you're looking for natural solutions or long-lasting results with herbicides. Plus, we’ve put together a video guide that shows you how to effectively get rid of a buffalo grass lawn. 

Why might you need to kill buffalo grass?

While Sir Walter buffalo grass is a popular choice for many homeowners due to its durability and low-maintenance qualities, there are situations where you might need to remove it. From unwanted spread to compatibility issues with other lawn types, buffalo grass can become a problem if left unchecked. Here are some common reasons why you might need to kill buffalo grass:

• Buffalo lawn can spread quickly, overtaking more delicate grasses like couch or Kikuyu.
• Some homeowners prefer the look of finer or different grass varieties.
• Removing buffalo grass is necessary when installing a new lawn type.
• Poorly maintained buffalo grass can attract weeds, requiring removal for a fresh start.
• Buffalo grass can cause skin irritation, especially for children or pets playing on the lawn.

What kills buffalo grass?

Buffalo grass, like any other plant, can be eliminated with the right approach. However, due to its strong growth habit and tolerance to various conditions, it can be difficult to kill without affecting other parts of your lawn. Here are the key methods:

• Herbicides: A selective herbicide that targets broadleaf grasses can help kill buffalo grass without harming other lawn varieties like couch or Kikuyu.
• Manual removal: This involves pulling the grass up by its roots, which is effective for small patches but labour-intensive for larger areas.
• Smothering: Covering the grass with a heavy tarp or layers of organic matter can deprive it of sunlight, causing it to die off naturally.

How to get rid of buffalo grass in couch lawn

One common issue is buffalo grass encroaching on a couch lawn. Because couch grass has finer leaves and a different growth habit, buffalo can dominate quickly. Here’s how you can tackle this problem:

• Use a selective herbicide: Look for products that specifically target buffalo grass but leave couch grass unharmed.
• Spot treatment: For smaller areas, hand-pulling the buffalo grass may work, but you need to ensure you get the roots to prevent regrowth.
• Fertiliser: Couch grass thrives with regular fertilisation. Strengthening the couch lawn will help it outcompete buffalo grass naturally over time.

How to kill buffalo grass in Kikuyu 

Kikuyu grass, such as our Eureka Kikuyu variety,  is another popular lawn choice that often finds itself in competition with buffalo grass. Killing buffalo in a Kikuyu lawn requires a careful approach:

• Selective herbicides: As with couch, it is essential to use a herbicide designed to target buffalo grass while sparing Kikuyu. These herbicides can also target broadleaf weeds, winter grass and other weeds that stem from buffalo lawns. 
• Manual removal: If herbicides aren’t an option, manually digging out buffalo grass, ensuring you remove as much of the root system as possible, is the best alternative.

Getting rid of buffalo grass in couch and kikuyu lawn: simplified

Killing buffalo grass in couch or Kikuyu lawns requires a targeted approach to avoid damaging your preferred turf. Here’s a comparison table of herbicides that can be used safely on each type of lawn variety:

How to kill buffalo grass naturally 

For those looking for eco-friendly options, natural methods to kill buffalo grass are available. While slower than chemical herbicides, these methods can be equally effective over time and keep your lawn healthy:

• Boiling water: Pouring boiling water directly onto buffalo grass will scald and kill it. This is a slow process but works well for small areas.
• Vinegar: Using a mixture of vinegar and water can act as a natural herbicide. However, this may also kill surrounding plants, so it’s best used in isolated spots.

Smothering with mulch or plastic: As mentioned earlier, covering buffalo lawn areas with thick layers of mulch or plastic sheets for a few weeks can deprive it of sunlight and air, causing it to die off.

How to remove buffalo grass permanently 

For those seeking a long-term solution, removing buffalo grass permanently is key. Here are the steps:

1. Herbicide application: Use a systemic herbicide that kills buffalo grass right down to the roots.
2. Deep digging: After the grass has died, dig deep to remove the remaining roots and rhizomes. Buffalo grass can regrow if any root system is left behind.
3. Soil solarisation: Cover the area with a plastic tarp during the hottest months to heat the soil and kill any remaining seeds or roots.
4. Replanting: Once buffalo grass is completely removed, consider planting your desired lawn type or landscaping option.

What causes buffalo grass to die naturally?

If your buffalo grass is struggling or dying without any intervention, it may be due to:

• Poor soil quality: Lack of nutrients can cause warm-season grasses, such as buffalo grass, to yellow and thin out.
• Excessive shade: While buffalo is fairly shade-tolerant, too much shade can weaken the lawn.
• Over or under-watering: Too much water can lead to fungal issues, while insufficient water will cause the grass to dry out.
• Pest infestations: Grubs and other pests can damage buffalo grass from the roots up.

Identifying these issues early can help you take preventive action before your lawn declines further.

Effective products for killing buffalo grass

Several products on the market are designed to kill buffalo grass while sparing other lawn types. Take a look at our lawn care shop to find the right products to effectively kill weeds and invading grass. The following table summarises some popular options:

Get professional help from Lilydale Instant Lawn

If you’re struggling to control buffalo grass in your lawn or want professional advice on the best lawn solutions, Lilydale Instant Lawn is here to help. With years of expertise in providing premium instant lawn, we can guide you in transforming your outdoor space.

Contact us today to discuss your lawn care needs or explore our range of lawn services.