On this page, we’ll take a look at some of the best weed and grass killers for flower beds. There are so many weed and grass killers available on the market these days that it can be hard to decide which one to choose. But if you’re looking for something that’s effective and safe to use around flowers, then this guide is for you!
Safest Weed and Grass Killer for Flower Beds
Best Weed and Grass Killer for Flower Beds
Ortho GroundClear Weed & Grass Killer Ready-to-Use
Ortho GroundClear Weed & Grass Killer Ready-to-Use (Buy Online) is an excellent choice for killing weeds and grass in flower beds. This potent formula starts working on contact, killing weeds and grasses in as little as 15 minutes.
What’s more, it uses an organic active ingredient – ammonium nonanoate – that breaks down quickly into harmless nitrogen and iron which promotes plant growth. And this formula is also waterproof, making it ideal for use in areas with heavy rainfall or sprinkler systems.
With its focused spray nozzle, this weed killer is easy to apply and control precisely where you want to target unwanted vegetation.
Ortho GroundClear Weed & Grass Killer Ready-to-Use is also safe for people, pets, and wildlife.
Green Gobbler 20% Vinegar Weed & Grass Killer | Natural and Organic | 1 Gallon
Green Gobbler 20% Vinegar Weed & Grass Killer (Buy Online) is an excellent option for those looking for an organic weed and grass killer. This product contains 20% acetic acid, which effectively kills weeds and grass in just 24 hours. It also comes in a large bottle with a spray nozzle for easy application.
The only downside of this product is that it is corrosive, so take care when using it around sensitive surfaces.
Overall, Green Gobbler 20% Vinegar Weed & Grass Killer is a safe and effective option for anyone looking for an organic weed and grass killer.
Ortho 0438580 Grass B Gon Garden Grass Killer Ready-to-Use, 24-Ounce
Ortho Grass B Gon Garden Grass Killer (Buy Online) is a powerful weed and grass killer specifically designed to kill grasses of all kinds – both annual and perennial – without harming surrounding plants. It is formulated with a highly-concentrated active ingredient, fluazifop-P-Butyl, that kills herbicide-resistant grasses. However, remember that it is ineffective against broadleaf weeds, so you may need to use an additional weed killer alongside this selective herbicide.
Monterey LG5328 Getter, Post Emergence Herbicide for Grass Weeds, 8 oz
Monterey Getter (Buy Online) is a selective herbicide specially formulated to kill grassy weeds while leaving your flowers unharmed. Monterey Getter contains Sethoxydim, and this concentrated formula is fast-acting, killing both annual and perennial grasses in just one application.
However, it should be noted that this post-emergent herbicide won’t kill broadleaf weeds, so you may still need to use additional products or methods to address those types of unwanted plants. Nevertheless, if you’re looking for an effective way to control grass in your flower beds, Monterey Getter is an excellent choice.
Fertilome 8 Oz Over The Top Grass Killer – 10434
Fertilome Over The Top Grass Killer (Buy Online) is a powerful, concentrated herbicide that kills annual and perennial grass. Thanks to its selective formula, this herbicide does not harm surrounding plants, making it ideal for use in flower beds and other sensitive areas.
In addition, a single bottle of Fertilome Over The Top Grass Killer can be used to treat up to 1800 square feet of space, making it a great value for home gardeners.
However, some users may find that this herbicide is less effective than other options when it comes to killing notoriously tenacious grasses like Bermudagrass and Johnson Grass. For these cases, you may want to consider a product like Ortho Grass-B-Gone instead.
Despite its limitations, Fertilome Over The Top Grass Killer is an excellent choice for most home gardeners looking to maintain their flower beds.
Dr. Earth 8012 Fiskars Machete (24″) Final Stop Ready-to-Use Natural Herbicide, 1 Gallon
Dr. Earth Final Stop Ready-to-Use Natural Herbicide (Buy Online) is a great choice for those looking for an all-natural herbicide. It is made with ingredients like cinnamon oil, clove oil, and thyme oil, and it is perfectly safe for people and pets. And because it is all-natural, you don’t have to worry about damaging your flower beds.
Although it isn’t as strong as some chemical herbicides, it is still very effective at killing grasses and broadleaf weeds. And overall, Dr. Earth Final Stop Ready-to-Use Natural Herbicide is a great choice for those looking for an all-natural herbicide.
Natural Armor Weed and Grass Killer All-Natural Concentrated Formula
Natural Armor Weed and Grass Killer All-Natural Concentrated Formula (Buy Online) is designed to quickly kill grasses and broadleaf weeds without using any toxic chemicals that can pose a risk to people and pets. It is made with all-natural ingredients like sodium chloride, citric acid, and clove oil, making it safe to use even in areas where children or pets may be present.
However, while Natural Armor Weed and Grass Killer is a great choice for most situations, it does need to be reapplied often to be effective. And while it is safe for most ornamental plants, care should be taken not to spray it on nearby plants you want to preserve.
Preen 2464161 Extended Control Weed Preventer
Preen Extended Control Weed Preventer (Buy Online) is a powerful pre-emergent weed control formula that stops weeds from sprouting for up to 6 weeks, making it one of the most effective weed killers on the market.
The large container size allows you to cover a whopping 800+ square feet with ease, while the shake bottle top makes application quick and simple.
However, some users have noted that Preen Extended Control Weed Preventer may inhibit the growth of newly planted seeds, so be sure to carefully read all product instructions before use.
Nonetheless, if you are looking for an effective and affordable way to keep your flower beds weed-free and beautiful year-round, we highly recommend Preen Extended Control Weed Preventer.
Roundup Landscape Weed Preventer
Roundup Landscape Weed Preventer (Buy Online) is a powerful herbicide that contains 1.71% Pendimethalin, which effectively stops weeds and grass from growing for up to 6 months.
Plus, unlike many other weed killers on the market, Roundup Landscape Weed Preventer won’t kill mature plants, making it a suitable option for use in flower beds.
However, there are some downsides to its use as well. In particular, Roundup Landscape Weed Preventer is not always effective against problematic herbicide-resistant grasses and weeds like crabgrass or goosegrass.
Still, overall, this product is one of the most trusted choices when it comes to killing unwanted weeds and grass in your flower or garden beds.
Can I Use Weed Killer In My Flower Bed
Is it safe to use weed killer in my flower bed? It is important to use caution when using weed killer in a flower bed, as it can also harm plants that are not weeds. If you decide to use weed killer in your flower bed, read the label carefully and follow all instructions.
Best Ways To Keep Weeds Out of Flower Beds
Pre Emergent Herbicide
Pre-emergent herbicides are an essential part of keeping your flower beds weed-free. They work by killing the weed seeds before they germinate, so you never have to deal with them popping up around your flowers.
There are several different pre-emergent herbicides on the market, so it’s important to do your research and find the one that works best for your needs. Be sure to follow the directions carefully, and always wear gloves and safety goggles when using any type of herbicide.
Related: Best Weed Sprayer on Wheels
Post Emergent Herbicide
Post-emergent herbicides kill weeds that are already actively growing, and it’s most effective when applied before the weeds have a chance to flower and produce seeds.
Before using any herbicide, read the instructions carefully and wear protective gear like gloves and goggles.
Flower Bed Weed Fabric
Using a weed fabric barrier in your flower beds can keep the weeds at bay and preserve your beautiful flowers. A weed barrier is simply a layer of fabric that you place over the soil in your flower bed. The material allows water and air to pass through, but it impedes the growth of weeds.
How To Keep Weeds Out of Flower Beds Naturally
Corn Gluten Meal
One of the best ways to keep weeds out of flower beds naturally is to use corn gluten meal. Corn gluten meal works great as a natural weed preventative. When applied as a pre-emergent, it stops weed seeds from germinating. It also breaks down quickly in the soil, so it won’t harm your flowers or other plants.
Mulch
Mulch is one of the best ways to naturally keep weeds out of flower beds. Mulch helps to smother weeds and also prevents weed seeds from germinating.
Just make sure to apply a thick layer of mulch (at least 3 inches) around your flower bed, and refresh it regularly.
Hand Weeding
To keep weeds out of flower beds naturally, consider hand weeding. This tedious task is often the most effective means of keeping your flower bed looking its best.
However, if you have a sizeable sprawling flower garden, you may need to use some herbicides or other weed control methods in addition to regular hand weeding.
Dense Planting
One way to naturally keep weeds out of flower beds is to plant your flowers close together. Weeds need sunlight and space to grow, so if you plant your flowers close together, the weeds will have a hard time getting established.
Weed Killer for Flower Beds That Won’t Kill Flowers
Preen
Preen is the best weed and grass killer for flower beds that won’t kill flowers. It’s a pre-emergent weed preventer that interferes with weed seed germination, so it’s effective at preventing new weeds from growing. It comes in granular form, and you just sprinkle it over the soil around your plants. However, follow the directions carefully because too much of it can harm plants.
Weed Killer for Flower Beds Vinegar
Vinegar could be a good option if you’re looking for a weed killer that won’t kill flowers. Vinegar is a natural Weedkiller and is effective against many types of weeds. However, it’s important to remember that vinegar will also kill desirable plants, so be careful when using it around your flower beds.
Ammonium Nonanoate
Ammonium nonanoate is a weed killer that can be used to kill weeds in flower beds. It is a contact herbicide, and it breaks down into harmless iron and ammonia very quickly, making it safe for soil life and surrounding plants.
