How to Get Rid of Bermuda Grass in Flower Beds?

Are you sickened by Bermuda grass invasion in flower beds and seeking a permanent solution to get rid of Bermuda grass from flower beds?

Then, you are in the right place. This guide is completely on the mechanical and chemical techniques to kill Bermuda grass in flower beds.

Bermuda grass (Cynodon dactylon) is actually a lawn grass and an excellent pasture grass. But, it is a nightmare for gardeners as this tough grass becomes an invasive weed in flower beds and other grass lawns like st. Augustine lawns.

Controlling the bermudagrass is much difficult as it spreads with three means – by seed, by above-ground shoots (stolons), and by below-ground shoots (rhizomes). Once it is invasive into your lawn or flower beds, it gets extremely difficult to kill it, even with multiple applications of herbicides.

But some technical approaches exist to get rid of bermudagrass in flower beds. 

We are going to show you some effective strategies to kill Bermuda grass in flower beds and you will really love this guide.

Let’s get started.

Methods to Control Bermuda Grass in Flower Beds 

There are many effective management approaches for controlling bermudagrass in flower beds. Some are least effective or temporary but are highly effective if used with proper care like selective herbicides. 

Similarly, some techniques are mechanical while others are chemical. Some organic techniques for killing bermudagrass are also present. All of these methods have their unique effectiveness.

Here are some techniques to kill Bermuda grass in flower beds:

1. Using selective herbicide – PBI Gordon – Ornamec Over The Top Grass Herbicide

Among the flood of selective herbicides, this grass-selective herbicide is the most effective and less damaging to garden plants.

Selective herbicides are used for more specific management in crowded beds. Such herbicides are safer to use near broadleaf perennials, shrubs, and trees. 

PBI Gordon is the most effective Bermuda grass selective herbicide for controlling and killing any grass species. Fluazifop-P-butyl is the active agent of this herbicide that is a ready-to-use formula for spraying over Bermuda grass. 

According to UC IPM To get maximum results, it is used in early spring before the Bermuda grass reaches 6 inches long. Reapplication can be done with seven days interval to kill grass completely.

2. Using Non-selective herbicides as a spot treatment – Roundup

As it is well known that non-selective herbicides are not picky for any specific type of plant. They kill every green plant, it touches. Therefore, great care needed when using them around ornamental plants in flower beds.

Glyphosate is the most commonly used nonselective herbicide on market. It is properly labeled as the “total vegetation killer” or “weed and grass killer”. 

Roundup by various famous brands, like Bayer, has glyphosate as the active ingredient. Make sure to not apply it in windy conditions.

These non-selective herbicides are used for killing Bermuda grass in flower beds by applying the chemical as a spot treatment on the grass. It will gradually block the internal enzymes from producing proteins and plants eventually dies in days.

bermuda Grass in Flower Beds

3. Using Vinegar as an organic killer

Spraying vinegar is an organic method to kill bermudagrass. The application of a 10% solution of vinegar helps to kill the weeds like tough Bermuda grass organically.

Vinegar is a non-selective natural weed killer so it will kill all the plants it touches. That’s why special care needed while spraying vinegar solution on bermudagrass in flower beds. 

Spot treatment technique works great for spraying vinegar to weeds in flower beds.

4. Removing grass manually

Digging out the bermudagrass in the established beds of flowers and other plants is effective management. But the manual pulling of bermudagrass is not a simple task as the bermudagrass spreads by stolons and rhizomes that are hard to pull.

Removing the bermudagrass from flower beds is only effective if the grass is newly established and less in amount. Difficulty in removing the bermudagrass completely can be overwhelming. 

When the soil in beds is tilted, the rhizomes can extend beyond 6 inches and become hand-pull futile.

If adopting the manual digging method, make sure to get all stolons and rhizomes.

5. Mulching the flower beds

Mulching is an old and effective weed controlling technique that is used commonly in many crops and garden beds. Similarly, bermudagrass gets killed by utilizing the high temperature created by plastic mulch in flower beds.

Aggie Horticulture recommends the control of bermudagrass. According to their research, mulching is the best method.

Flower beds are covered with plastic mulch that can be obtained from any garden centers or hardware stores. The plastic will trap more heat inside and it will gradually kill Bermuda grass. 

Black polythene can also be used as mulching and it is more effective for trapping heat during the hottest months of summer.

How to get rid of Bermuda grass organically?

Spraying vinegar solution is the organic method to get rid of bermudagrass in flower beds and lawns. It is a non-selective natural weed killer that is not picky for any special kind of plant.

The University of Maryland recommends Vinegar solution (10%) kills the bermudagrass by disturbing the enzymatic reactions occurring in the plants. But while using vinegar solution, keep in mind that it can also kill ornamental plants. That’s why the spot treatment is preferred for vinegar application.

kill bermudagrass in flower

How to stop Bermuda grass from spreading?

Edging of the beds is the most effective technique to prevent the bermudagrass from spreading. It will stop the more spread of bermudagrass in flower beds and lawn areas. You can get rid Bermuda grass from est Augustine and every grass lawn through the same method.

Here are some other effective methods to stop Bermuda grass from spreading:

  • Digging out the bermudagrass by locating the Bermuda stolons growing in flower beds. Grasp the ends of the stolon towards the direction it is creeping. Pull all the roots parts.
  • Locate the rhizomes in the beds and did the soil with a shovel to locate rhizomes. Remove the rhizomes by pulling as much as possible.
  • Make the solution of glyphosate by mixing 2.7 ounces in one gallon of water. Spray the glyphosate solution on the spreading ends of the bermudagrass and water the grass thoroughly.
  • Spot treatment of glyphosate solution gives the most effective results. Make sure to overspray over the flowering plants.
  • Place a borderline along the edges of flower beds. Any solid material like stones or wood can be used to create a border. It will protect the beds from the creeping weeds to spread inwards the flower beds.

To control the already existing bermudagrass, mulching on bermudagrass with a 2-3 inch layer of mulch is also effective. Choose the mulch material that is compliant with flowers.


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