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Weed Killers for Flower Beds That Won't Harm Your Flowers

Jelena Maric
Agricultural Engineer

If you’ve been battling weeds in your flower beds, it may be time to look into weed killers that won't harm the flowers.

Weeds can grow quickly, and if you aren’t careful with your garden, they can overtake it within a week or two. As long as you have a strong enough herbicide, you can get rid of all that pesky foliage in just one day. 

What about the flowers? 

They need some help too. There are weed killers available on the market today that will kill your weeds without harming the rest of your garden. 

But how do you find the best weed killers for your flowers? 

Some of these products will work better than others, and some may be harmful to your flowers. What herbicide should you use depends on how large is the affected area, too. That is why you need to know what each product can do before you purchase it, and different approaches to the weed problem.

The Top 5 Weed Killers for Flower Beds

Ortho Weed B Gon plus Crabgrass Control Ready-To-Use Comfort Wand

It will not damage your plants. With a comfort wand or trigger sprayer that starts working immediately, this product is available in 24oz ready-to-use spray bottles or 1 gallon ready to use with a nozzle set up for spot treatments. 

 

This weed killer arrives ready to use with no mixing required, meaning you will not be making any miscalculations. In addition, there is no need for an additional spray apparatus because the product is rainproof within 1 hour of application, and results are visible after just one spray. This weed killer will not damage your flowerbeds while efficiently targeting over 200 different types of weeds.

Compare-N-Save 75324 Herbicide

Contains 41-percent glyphosate, enough to cover up to 85 gallons of ready-to-use spray and make it easy for you to get rid of any unwanted weeds on your property, no matter what their size or species are. The first spray of this weed killer will coat your yard and start to work. The chemical becomes resistant to rain within hours. 

Customers report being able to see results in 2-4 days! External spraying is necessary for a solution such as this one; however, there is good news: the sprayer can be used on many different types of projects around the home.

Roundup 5720010 070183572007 Extended Control Grass Killer Plus Weed Preventer II

If you want a product that will kill the existing weeds in your yard, and also keep new weeds from growing, then Roundup Extended is perfect for you. 

It is rainproof within 30 minutes of application with visible results after just 6 hours. 

There are a lot of other great features about this particular product that makes it worth trying out. You can apply it without worrying about wind conditions because it evaporates quickly.

Spectracide Weed and Grass Killer

Spectracide is a product that kills weeds and grasses. You can use it in your driveway, sidewalks or other areas of the yard. It will kill the roots- you should see results as soon as 3 hours after application! One day later, you'll be able to replant flowers, trees and shrubs without any worries about new plantings being washed away by rain - because this product offers a money back guarantee! Mixing with water into concentrate for tank sprayers makes coverage over target vegetation leaves easy. To get your money back if not satisfied with purchase details are on label's back side.

Q&A 

1) How soon can I let my pets roam around treated areas?

  • Once these are completely dry from spraying them down, it is safe to allow contact though we recommend staying away until then; 

2) When can I re-seed/replant target vegetation once sprayed?

  • Immediately afterward (the same day); 

3) Does rainwater affect effectiveness post-treatment?

  • No - watering 15 min after application does not wash off product efficacy.

Preen 2464083 Garden Weed Preventer

It is a weed preventer. The safe, plant-based formula can be used around established flowers and shrubs, trees, and vegetables. It is also available as a refill with instructions for use on edibles. 

Remove existing weeds before applying Preen, so they don't come back after you apply the product. Remove all of them because it will not kill current weeds - only prevent new ones.

 

Applying mulch helps retain soil moisture. It makes your plants happy and healthy and keeps soil temperature even throughout different seasons of growth inside your garden. It also prevents weed growth. 

Apply Preensil onto our garden area and water it. Water activates ingredients into an invisible barrier blocking out new potential weeds.

Natural Solutions For Weeds in Flower Beds

If you want to kill weeds without killing the flowers, then you should consider these five more environment-friendly options:

Vinegar will kill most weeds and has no negative effect on flowerbeds. The only downside to using vinegar is that it needs to be applied often because it doesn't last long. The good news is that it is cheap and can be purchased in any grocery store.

This is a fine, soft powder that you can use to kill weeds. The good news here is that it will not harm the flowers and has no negative effect on the environment. The downside is that you need to apply this all over your flowerbeds and may have to repeat treatments if you don't watch out for the rain.

You should be able to find kitty litter at most pet stores or drug stores for about $10 for a 20-pound bag of litter. This will work great if you are looking for an environmentally friendly way to kill weeds without harming your flowers.

Coffee grounds are a great option because they will not harm your flowers and since they are organic, they won't harm the environment either. You should expect to use about one pound of coffee grounds per 100 square feet of flowerbeds, so keep this in mind when choosing your coffee grounds.

Sulfur is a great option because it will not harm your flowers and has no negative effects on the environment. It also works great as a weed killer and is safe for other plants around your flowers. You can use it safely around the flowerbeds, but you don't want to apply it to the soil where your flowers grow because it will kill the roots of your plants.

Hydrogen peroxide is another great all-natural way to kill weeds without harming your flowers. You can make a solution of one part hydrogen peroxide to three parts water and use this in an empty spray bottle.

Iron can be purchased at a hardware store or online and comes in a variety of forms. Iron is safe for plants and easy to apply. It works by attracting moisture from the soil which then kills the weeds.

Salt can be sprinkled over the ground to keep water from seeping into the soil where it would otherwise nurture new growth of weeds. Salt will not kill any plants if applied properly, but make sure you don't use too much salt, as this could harm your plants.

  • Sugar Water:

Sugar water is just as effective as vinegar when it comes to killing weeds and won't harm any plants either. The downside to sugar water is that it's more expensive than vinegar and may need more applications to get rid of all of the weeds

Epsom salts are great for killing tough weed types and can also be used as fertilizer after they're applied. They're very affordable, but might take a few days before they start working effectively

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