Best Weed Killer That Won’t Kill Flowers

When killing weeds in flower beds, you need to be sure you have the right product for weed control in flower beds, so you don’t affect the desirable plants you have. You also have two types which are post-emergent or pre-emergent weed killers.

Knowing which is the best way to control weeds goes a long way in knowing which products are the best. However, knowing, which is the right herbicide, can take a bit of understanding, and there will be no vinegar solutions in the reviews.

Here, we have our reviews of the best weed killer for flower beds to make sure you end up killing weeds in flower beds and not your treasured plants.

#1 Best Seller
Compare-N-Save 75324 Herbicide, 1-gallon, white
Fertilome 33692 Killzall Weed and Grass Killer, 32oz. Super Concentrate
Spectracide Weed & Grass Killer With Extended Control Concentrate, 40-Ounce
Compare-N-Save 75324 Herbicide, 1-gallon, white
Fertilome 33692 Killzall Weed and Grass Killer, 32oz. Super Concentrate
Spectracide Weed & Grass Killer With Extended Control Concentrate, 40-Ounce
#1 Best Seller
Compare-N-Save 75324 Herbicide, 1-gallon, white
Compare-N-Save 75324 Herbicide, 1-gallon, white
Fertilome 33692 Killzall Weed and Grass Killer, 32oz. Super Concentrate
Fertilome 33692 Killzall Weed and Grass Killer, 32oz. Super Concentrate
Spectracide Weed & Grass Killer With Extended Control Concentrate, 40-Ounce
Spectracide Weed & Grass Killer With Extended Control Concentrate, 40-Ounce

Why You Need a Good Weed Killer That Won’t Kill Flowers

What is more irritating than seeing weeds slowly take over in your existing flower bed.

Weeds don’t work in the way roses or other flowers will. Weed seeds lie dormant waiting to be dug up when you give them the right growing conditions. Weeds arrive before flowers get moving and seed early. It is half the reason weed control is nearly impossible.

Stopping them before they start is one way of preventing weeds. In the first place, there are products designed exclusively to stop the growth of weeds, although they work best before you create your flower bed. (Read 5 Weeds That Look Like Flowers)

It is best to apply weed killer products before planting flowers for the season, and prevent weed problems before they start.

Then, a thick layer of mulch can keep your plant areas free from weeds most of the time rather than keep using a related herbicide.

Top Weed Killer That Won’t Kill Flowers Reviews

Compare-N-Save 016869 Concentrate Grass and Weed Killer

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1. Compare-N-Save 016869 Concentrate Grass and Weed Killer

This weed killer product from Compare-N-Save contains 41% glyphosate solution. It is easy to use for spot treating around flower beds, veggie gardens, trees, and shrubs.

Besides, you can use this to cover a 10,000 square foot area from 1-diluted gallon to deal with killing weeds growing on driveways, paths, and fences.

It is rainproof in 2 hours, and results are visible in 2 to 4 days, although for weeds to die it can take up to 2 weeks.

Weeds absorb the glyphosate, and it works by attacking the plant roots.

Apply in the spring, and you may not need a second application until the next year.

It doesn’t, however, have residual activity, so new plants can still grow, thus further planting is possible, unlike other spray weed killers that want to stop this growth.

Pros

  • Good value herbicide weed killer for flower beds
  • Makes 85 gallons of powerful weed killer mixed with water
  • Weeds won’t come back quickly

Cons

  • This herbicide kills everything
  • Not ready to used

With a guide price of just over $22, this weed killer for flower beds is very effective. However, you do need to be careful where you spray this herbicide as it is non-selective and can kill grass, plants, all your weeds and your lawn.

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2. Preen 2464083 Garden Weed Preventer

Preen is a pre-emergent weed killer, so it is used to prevent weeds from growing rather than weeds you have; also, it will not kill weeds that already exist.

In flower beds, this makes it a perfect alternative to use. It prevents weed seeds from germinating for up to 3 months when you apply granules to the soil in early spring. You can make a second application in the summer and the fall to your weed-free regions to keep them under control.

It has been formulated to be safe with 200 varieties of flowers, vegetables, shrubs and trees. However, it is a grass killer, so don’t use on your lawn.

Pros

  • Easy to use
  • Prevents weeds for up to 3 months
  • It doesn’t harm flowers
  • Won’t harm the soil

Cons

  • It won’t kill existing weeds in your lawn
  • Not safe suing on grasses

With a high guide price of just over $60, this is the best weed killer for flower beds and large areas. It comes in a large 31-pound bag, so it does work out cost-effective to cover the 5,000 square feet.

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3. Roundup Weed & Grass Killer Concentrate Plus Value Size

A perfect option if you need something to use with a spray tank is this Roundup weed killer.

It can be the easiest ways to cover large areas. It is safe to use on flower beds and the yard with shrubs and trees.

Within 30 minutes, the formula is rainproof and can produce results in 24 hours. It’s easy to apply; and spray on weeds until thoroughly wet, and killing weeds at the root is assured.

Make sure to avoid desirable plants and rinse with water if you accidentally spray them.

Within days, weeds wilt and die in one or two weeks. Plus, you can replant in a short time, such as the following day.

Pros

  • Fast-acting
  • Very cost-effective
  • Doesn’t affect the soil
  • Rainproof in 30-minutes

Cons

  • Not ready to use. Needs dilution and tank sprayer
  • Can kill other plants

With a guide price of just below $18, the Roundup weed and grass killer is very easy on the weed control budget. One quart of weed killer can make 10 gallons from the concentrated solution, so the 36.8-ounce bottle will go a long way for large areas or repeat application.

Fertilome 33692 Killzall Weed and Grass Killer, 32oz. Super Concentrate

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4. Fertilome 33692 Killzall Weed and Grass Killer, 32oz. Super Concentrate

The Killzall weed and grass killer is an effective option from Hi-Yield. It uses a special double-surfactant formula, which dries on plants and works quickly and is rain-fast in 2 hours.

It comprises 41 per cent glyphosate, so when applied to the leaves, it works its way down to the roots to eliminate weeds.

This super-concentrated formula comes in a 32-ounce bottle and when diluted can cover up to 6,500 square feet.

For smaller application, it only needs three tablespoons for a gallon of water for light weed control. If you have stubborn leaves, use five tablespoons.

Weeds die in around a week, and with the regular application, this is typically enough. You can use this flower bed weed killer near fences, patios, pathways and driveways.

Either tank sprayers or hand-trigger pump sprayers are suitable for this product.

Pros

  • Double surfactant for fast action
  • Very cost-effective
  • Multi-application use
  • Concentrated formula

Cons

  • Needs dilution
  • Requires hand sprayer or tank sprayer

With a guide of under $17, the Killzall is an effective solution. It can be used in many areas and one of the main downsides being you may need a repeat application for it to remain effective.

Spectracide Weed & Grass Killer With Extended Control Concentrate

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5. Spectracide Weed & Grass Killer With Extended Control Concentrate

Spectracide is a weed killer with quick action and with measurable results in just three hours. Sometimes 24 hours is needed for larger weeds.

This weed killer doesn’t kill the roots because it works directly with the leaves on contact. Subsequently, weeds grow back, and you need frequent applications are required to keep your flower beds without weeds. (Find the Best Pet Friendly Weed Killer)

Also, as this is a non-selective weed killer, you’re going to have to be careful where you spray it. Compare N Save advises using cardboard or plastic to protect desirable plants or vegetables.

If you get some of your flowers or shrubs, you can quickly try to wash them off before they do any real harm, also use on days without wind to be accurate with spraying.

Pros

  • Works fast
  • You can replant on the next day
  • Kills insects
  • Cost-effective

Cons

  • Weeds will grow back as there is no root killing
  • Care is required around flowers and veggies

With a guide of $20, the Spectracide is a cost-effective solution considering it is concentrated. It is suitable for managing weeds on driveways, patios, paths, around foundations and fence lines. It also has an insecticide to help control any insect problem you have.

Finally, if you’re not satisfied, Spectracide provides a money-back guarantee.

Weed Killer That Won’t Kill Flowers Buying guide

Unfortunately, buying a weed preventer isn’t a matter of pulling one off the shelf.

Pink weeds

There are different types, and knowing how they work helps you make the best choice. Here are a few things to consider before you buy:

Selectivity

Selective weed killers target certain weeds and grasses. They are a safer option around flowers and shrubs; you can also often use them on lawns.

Non-selective weed killers destroy any plants you spray them, including flowers.

Emergence

Do you have weeds already, or do you want to stop them growing in the first place?

Depending on your problem, you’ll need a different weed killer.

Pre-emergent weed killers prevent weeds growing once applied to weed-free areas. They don’t, however, kill weeds you already have. For that problem, you need a post-emergent weed killer.

Contact or Systemic?

Systemic weed killers are absorbed by plants and damage them internally, thus attacking from the inside. Glyphosate and 2,4-D are such chemicals of this type.

Contact herbicides show fast results once you soak the offending weed (like vinegar). Where systemic herbicides may take 2-3 weeks to kill, these can kill in hours, yet not as effectively. You will also see regrowth as the roots are not dead as if you used vinegar.

Persistence

Herbicides that continue to affect the soil will prevent weeds germinating and are thus persistent.

It helps keep areas clear, yet you can’t plant in that area. Non-persistent weed killers don’t stop any growth and a better solution for an active gardener.

Final Verdict

All of the spray weed killers here are effective, although when compiling results, we found one to offer the best solution. Although like many, you can’t use around some areas of your garden. The Compare-N-Save 016869 Concentrate Grass and Weed Killer were quickly seen to be the best.

It provided the most extensive spray coverage when used in any garden area at 10,000 square feet. To get rid of weeds in an area that size, it has to be effective. Even though not ready to use, you can quickly make one gallon to take care of weeds around your home so that the full bottle can last you ages.

You can quickly mix a gallon to get rid of stubborn weeds, and you know they won’t return that quick.

Out of all the products here, it was the best, to stop weeds from growing in flowerbeds; without affecting the soil too much.

It wasn’t even bothered with the type of weed, so you do need to watch out for your desirable plants.

Yet, aside from this, there is no reason it can’t be used around the home garden safely. Out of all, it is the top herbicide from the related bunch of other products here.

Read more: Best Pre Emergent Weed Killer

Best Weed Killer That Won't Kill Flowers

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