10 Best Weed Killers in 2019

best overall rating
  • 41% glyphosate
  • 1-gallon container
  • Use on a dry day with an outdoor temperature of 60 degrees Fahrenheit
premium choice rating
  • Prevents weeds
  • Can be used to prevent weeds for up to three months
  • Offers coverage of up to 2560 square feet
great value rating
  • No mixing requires
  • Sprays straight from the pump
  • Refills available

Maintaining an attractive and useable outdoor space can prove to be a difficult task, requiring a great deal of time and effort to keep on top of unsightly weeds.  The traditional method of pulling-out weeds by hand or by using a tool can be an arduous and thankless task, particularly if the weeds grow back.

Related review; list of the best riding mowers for your lawn in 2019.

A weedkiller, however, can be applied from a spray bottle or a watering can directly onto the desired area, destroying the weed through to the root. We have reviewed ten of the best weed killers currently on the market, helping you to decide which weed killer is perfect for you and your outdoor space.

View the Best Weed Killers

best overall rating

1. Compare-N-Save Concentrate Grass

CLICK HERE FOR PRICE

Read Customer Reviews Here »

Compare-N-Save Concentrate Grass is a weed killer available in a 1-gallon container, consisting of 41% glyphosate.  Offering full coverage for up to 25,000 square feet, visible results are witnessed after only two to four days.  Choose to apply the weed killer on a warm day, with temperatures above 60 degrees Fahrenheit, ensuring that no rainfall is predicted within the subsequently 24-hours.  However, this weed killer is rainproof after only two hours.

Simply mix 1.5 oz of the weed killer with a gallon of water and spray across your desired area.  For tougher weed control, you may add up to 2.5 oz to a gallon of water.  This mixture should cover 300 square feet of outdoor space, being the perfect solution for driveways, flower beds, and vegetable gardens.

Compare-N-Save Concentrate Grass weed killer is rainproof after only two hours, protecting your application from unexpected weather conditions.

Why We Like It
  • 41% glyphosate
  • 1-gallon container
  • Use on a dry day with an outdoor temperature of 60 degrees Fahrenheit
  • Rainproof after 2 hours
  • Use between 1.5 oz and 2.5 oz of weed killer with one gallon of water
Rainproof
Yes
Area of Use
25,000 Square Feet
Visible Results
Yes
premium choice rating

2. Preen Garden Weed Preventer

CLICK HERE FOR PRICE

Read Customer Reviews Here »

Preen Garden Weed Preventer prevents weeds from occurring for up to three months, covering up to 2560 square feet.  This solution is suitable for a wide range of flowers, shrubs, trees, and vegetables, and can be applied throughout the spring, summer, and fall seasons.  To use Preen Garden Weed Preventer, the area in question should be prepared and any existing weeds should be removed.   Place a layer of mulch on top of the soil and then sprinkle the granules, watering the granules well.  Weeds are therefore prevented from growing for up to three months.

Preen Garden Weed Preventer helps to prevent weeds growing, acting as a strong deterrent and protection for your outdoor space.

Why We Like It
  • Prevents weeds
  • Can be used to prevent weeds for up to three months
  • Offers coverage of up to 2560 square feet
  • Safe to use on a wide range of vegetables, shrubs, trees, and flowers
  • Can be used throughout the spring, summer, and fall seasons
Rainproof
No
Area of Use
2,560 Square Feet
Visible Results
Yes
great value rating

3. Roundup 5725070 Extended Control

CLICK HERE FOR PRICE

Read Customer Reviews Here »

Roundup 5725070 Extended Control is easy to use through attaching the pump and spraying this weed killer across the desired area.  Up to ten minutes of continuous spray is achieved, with no mixing required.  Refilling the container is quick and straightforward and kills weeds through to the root.  Each container covers up to 400 square feet and is rainproof in only ten minutes.  Existing weeds are eliminated and potential weeds are prevented for up to four months.

Roundup 5725070 Extended Control prevents new weeds growing for up to four months as well as destroying existing weeds.

Why We Like It
  • No mixing requires
  • Sprays straight from the pump
  • Refills available
  • Rainproof after only ten minutes
  • Kills existing weeds and prevents new weeds growing for up to four months
Rainproof
Yes
Area of Use
400 Square Feet
Visible Results
Yes

4. Green Gobbler Vinegar Weed & Grass Killer

CLICK HERE FOR PRICE

Read Customer Reviews Here »

Green Gobbler Vinegar Weed & Grass Killer eliminates weeds and destroys grass quickly and simply.  Visible results are available after a few hours, with full elimination after only 24 hours.  This weed and grass killer contains 20% acetic acid and is perfect for use on dandelions, moss, clover weeds, white clover, and crabgrass.  Also, a 30-day money-back guarantee comes with this purchase, enabling you to discover the results for yourself risk free.

Green Gobbler Vinegar Weed & Grass Killer ensure that weeds and grass are eliminated after a full 24-hours.

Why We Like It
  • Eliminates weeds
  • Destroys unwanted grass
  • Contains 20% acetic acid
  • Use on dandelions, moss, clover weeds, white clover, and crabgrass
  • 30-day money-back guarantee is included
Rainproof
No
Area of Use
2,000 Square Feet
Visible Results
Yes

5. PBI/Gordon 652400 Speed Zone

CLICK HERE FOR PRICE

Read Customer Reviews Here »

PBI/Gordon 652400 Speed Zone covers a large area of outdoor space, between 14,000 square feet to 18,000 square feet.  Hours after the application, visible results are witnessed, ensuring quick and easy weed control which tackles troublesome species of weeds within turfgrass.  Lawns are protected as the formula eliminates unwanted weeds, performing to a high degree even when the weather is cool.

PBI/Gordon 652400 Speed Zone weed killer ensures visible results after only a few hours, with the ability to reseed after only two weeks.

Why We Like It
  • Covers between 14,000 to 18,000 square feet
  • Visible results hours after application
  • Tackles troublesome weed species
  • Lawns are protected
  • Performs well in cool weather
Rainproof
Yes
Area of Use
14,000 - 18,000 Square Feet
Visible Results
Yes

6. Scotts Halts Crabgrass & Grassy Weed Preventer

CLICK HERE FOR PRICE

Read Customer Reviews Here »

Scotts Halts Crabgrass & Grassy Weed Preventer covers an outdoor space of 5,000 square feet.  Just one application of this weed killer is enough to protect against crabgrass throughout the season, tackling problem weeds and enabling protection across all weather conditions.  Scotts Halts Crabgrass & Grassy Weed Preventer can also be applied during fall, helping to prevent moss in addition to chickweed, henbit and poa annua.  

Scotts Halts Crabgrass & Grassy Weed Preventer is a good weed killer to use during the fall season, preventing weeds such as crabgrass.

Why We Like It
  • Coverage across 5,000 square feet
  • One application necessary
  • Protects against crabgrass
  • Suitable for all weather conditions
  • Use in fall to prevent moss
Rainproof
No
Area of Use
5,000 Square Feet
Visible Results
No

7. Roundup 5200210

CLICK HERE FOR PRICE

Read Customer Reviews Here »

Roundup 5200210 offers an easy to use, direct weed killer which can cover up to 400 square feet per application.  A spray pump is included for easy application, providing the perfect solution for flower beds, vegetable gardens, mulched beds, tree rings, patios, and driveways.  Your application is rainproof after only 10 minutes, with visible results being witnessed after only 3 hours.

Roundup 5200210 weed killer ensures a direct application, with visible results after only three hours from application.

Why We Like It
  • Direct application
  • Pump spray
  • Covers 400 square feet
  • Rainproof after 10 minutes
  • Visible results after 3 hours
Rainproof
Yes
Area of Use
400 Square Feet
Visible Results
Yes

8. Spectracide HG-96017

CLICK HERE FOR PRICE

Read Customer Reviews Here »

Spectracide HG-96017 weedkiller provides a rainproof application after only 15 minutes, achieving visible results after three hours.  For the best results, apply when the weather is dry and temperatures are above 60 degrees Fahrenheit.  The formula is ready to use and comes complete with a spray applicator, perfect for killing weeds and grass across driveways and patios as well as trees, flowerbeds, and shrubs.

Spectracide HG-96017 weed killer is ready to use and easily sprays across your desired area with the included spray applicator.

Why We Like It
  • Rainproof after 15 minutes
  • Visible results after 3 hours
  • Apply when the weather is dry
  • For best results, apply when temperatures are above 60 degrees Fahrenheit
  • Ready to use formula and spray applicator
Rainproof
Yes
Area of Use
2,000 Square Feet
Visible Results
Yes

9. RM43 43-Percent Glyphosate Plus Weed Preventer

CLICK HERE FOR PRICE

Read Customer Reviews Here »

RM43 43-Percent Glyphosate Plus Weed Preventer ensures complete vegetation control for your outdoor space, killing weeds and ensuring total protection and prevention of weeds for up to one year.  Coverage of up to 4,324 square feet is achievable, with the formula being perfect for barns, farm buildings, and fencerows.   Additionally, RM43 43-Percent Glyphosate Plus Weed Preventer contains 43% glyphosate.

RM43 43-Percent Glyphosate Plus Weed Preventer ensures that as well as killing all weeds, your land is protected for up to one year from new weeds growing.

Why We Like It
  • Complete vegetation control
  • Contains 43% glyphosate
  • Protects for up to one year
  • Covers 4,324 square feet
  • Perfect for barns, farm buildings, and fencerows
Rainproof
No
Area of Use
4,324 Square Feet
Visible Results
No

10. Southern Ag 2,4-D Amine Control

CLICK HERE FOR PRICE

Read Customer Reviews Here »

Southern Ag 2,4-D Amine Control provides 1,000 square feet coverage per application, ensuring 1 to 4 pints of formula per acre.  Only 2 to 3 tablespoons of the solution are required along with 3 to 5 gallons of water, this weed killer is the perfect formula for pastures, ditch banks, turf, and rangeland. For the best results, apply as a coarse, low-pressure spray, providing selective broadleaf weed control.

Southern Ag 2,4-D Amine Control is the best weed killer for selective broadleaf weed control.

Why We Like It
  • Provides 1,000 square feet of coverage per application
  • Only 2 to 3 tablespoons of formula required per application
  • Perfect for pastures, ditch banks, turfs, and rangeland
  • Apply as a coarse, low-pressure spray
  • Provides selective broadleaf weed control
Rainproof
No
Area of Use
1,000 Square Feet
Visible Results
No

Weed Killer Buying Guide

Weeds – a widespread phenomenon all across the greens. These unwanted growers do not just make the most perfect lawn look untidy and unlooked after, but also eat up all the essential nutrients as well as block the sunlight from reaching the normal grass and other plants.

This way they also affect the overall health of the lawn and if not killed soon, they can make your entire lawn look dull and dead. There are various ways to get rid of these ugly growers. Of these, plucking and slashing are some of the widely used methods.

Let’s first go through all the available option for weed removal available today:

Chemicals

The simplest of options for weed removal is the use of the chemical formulae available all over the markets. There are various types of these, and each caters to a different type of weed and lawn.

A hoe shovel

There are two types of this tool: the Dutch hoe and thee Draw hoe. For the best weeding jobs, the Dutch works best. It has a flattened blade that helps you slash off weeds with ease. If you are looking into buying one, you need to look for a longer handle. This will enable you to work with ease and lesser effort on your part.

Pullers

Then there are various weed pullers to help you in getting your lawn free from these stubborn weeds. These help you extract them from the roots. These come built with adjustable handles to fit your height and help you work with more ease.

However, these methods are a lot of hard work if you have a wide or vast lawn. It could actually cost hundreds of hours to manually slash or cut each weed individually across a huge area. Therefore, we now have special formulae to combat these weeds.

These can work instantly or over a couple of days and get you the neat and tidy lawn you dream of. When it comes to selecting the right weed killer for your lawn, there has to be a certain guideline in your mind.

The most important factor is that you need to know how your lawn is; this can help you analyze and select the main features of these weed killers and find the right one for your lawn.

Homemade Weed killers

There are several homemade herbicides to prevent the weed growth in your lawn. A few of these are discussed here:

Use Boiling Water

This is the easiest to make and the best organic weed killer made at home. Just boil water and pour it on the weeds directly. It is best for using on the porches, sidewalks and other such areas and it enables you to do replantation in those areas as you desire. It has no effects on the soil nor leaves any residue to disrupt later growth.

Burn Them

Heating the weeds will automatically kill the weeds as well as any hidden parts of the plant which may sprout later on. There are various tools available in the market to heat or fire the weed directly without any affects or damage to the surroundings. It can be said to be the best natural weed killer for all those annoying plants growing in your lawn.

Use Salt

If you can apply salt directly to the weed, it can work as a great weed remover. You can also use it with warm water and a certain amount of dish wash liquid to make an effective homemade weed killer spray.

However, it may be required to spray the affected areas a few times to get the actual results.

Use vinegar

White vinegar kills the weeds and adds more space in your lawn for planting more grass or other plants. You can either directly spray on the leaves or add a few drops of liquid detergent to make it more effective.

Types of Chemical Weed Killers

These are the easiest to apply; they often come ready to be used in a spray bottle or as concentrates, which you have to mix with a certain amount of water and use in a spray or water can across the lawn or specifically on affected areas. There are various types of these chemical formulae as well. These are divided into few classes based on their application as well as the way they function.

Contact Killers

This kind kills by burning the weed it targets. It is best to be used during the growing season as it could inhibit the growth of seeds during sowing. Acts immediately and does no harm to the soil fertility; it works best to keep the garden in its prim condition.

Systemic Killers

This type works deep to the roots of the unwanted plants and stems. The results may not be apparent within hours of its use, however it kills the weed from within. You can see visible results within 3-4 days of its application, while the rest of the surrounding areas remain completely safe for regrowth of other plants and grass.

Residual Killer

If you are more concerned about weed disrupting your pathways, porches or other such areas, you should go for this type. It kills the weeds and leaves a thin residual base behind to inhibitthe growth of any more weeds later on.

Selective Type

This type targets and kills a specific type of weed. The rest of the surrounding plants or grass remains as it is after its application. These are termed as the best weed killer for lawns as the lawn remains its fresh green self, while the weed just dies away.

The selection of the best weed killer also depends on various other factors, such as:

The Area

It all depends if you intend to cover your entire lawn or affected patches. The patches could include areas like the pavement, porch, patio, etc. where there is growth or on flowerbeds.

For specific areas, these chemicals come in a form of spray gun with a nozzle, which allows you to spray directly on the affected region or exactly on the weed. These are usually ready to use and come in a spray bottle for direct application.

Whereas, if you intend to purchase one for your entire lawn, there are other safer options which do not harm your lawn but get rid of all the visible weeds as well as those below the surface, in just a few days’ time.

Most of these come as a concentrate which has to be mixed with water. Then you can either use a watering can or a pressure spray for application across the entirety of the lawn.

The Type of Weed in Your Lawn

Another essential point to consider when buying the weed killer. Most of these have a list of weeds they can combat. Always go through the complete specifications to know about the product and see whether it suits your requirements or not.

One formula may be great for a specific type of weed, but may not do anything to another type. For that you may need to use another product or get the most effective one to combat all through it.

The best way to do that, is to pick one or the entire lawn which does not harm the rest of the plants and grass and use it along with a ‘spot spray’ to get those hard to find weeds.

A Few Tips Before Making Your Purchase

  • Usually weeds die after a single application of the weed killer. However, you may require a few more application for more stubborn weeds with stronger roots to completely get rid of them.
  • A more concentrated version does not guarantee better results. However, it can be more harmful for the rest of the lawn and other plants.
  • Some killers work instantly, others take a few days for more visible results.
  • Liquid sprays are more effective and deadly for the weeds as compared to the granulated products. They cover more area and effectively kill the weed directly.
  • The ready to use products may be much easier to use but could cost over 4 times or even more, of the concentrated ones. So, your budget here, is another important factor.
  • Another thing to keep in mind, is never use the same spray bottle you use for this spray for fertilizer. It may kill all the good plants too due to the residue left in the spray bottle.
  • Be sure to read out the instructions on your spray bottle. It may not be safe for the rest of the lawn. For other areas use products which are said to be safe and the best weed killers for flower beds, grass and other good plants.
  • Read the instructions carefully. Each composition requires a different blend of ingredients and water to make the correct formula for usage.
  • Do not exceed the required chemical for a single dose. It could make it more poisonous and harmful for the other plants.
  • The best weed and grass killers are a bit tricky to use. Keep in mind if they can kill grass, they can kill your entire lawn. These are more suited and the best weed killers for flower bedsand other areas especially the ground. These are also great if you are planning to replant the entire lawn.
  • Safety is another important consideration when choosing the right weed killer for your lawn. Study the effects and pick the safest one for your home; especially if you have kids or pets, read the instructions well before buying the brand.
  • Try to avoid younger or new plants when spraying. These are yet developing and will have increased chances of being affected by it than the other mature plants.
  • Do not water the area after application. It is the best to let it dry for over a day or two for the best results.

How Often Should You Apply this Weed Killer for Long Lasting Weed Growth Prevention?

The ideal time for the application of the weed killer is usually 2 days or so after freshly mowing or at least 3-4 days prior to the next mowing session. However, avoid frequent sprays and try to keep it limited to the affected areas.

If you still feel the need for more frequent usage, then it could mean that the way you make the composition is not right or the basic procedure could have a flaw. Keep in mind that weeding could also affect new grass or seeds from growing.

So keep it well distanced by working on both in different seasons. For instance, if you spray the weed killers during summers and spring, you should go with seeding and new plantation in the autumn season.

This allows a sufficient time for the ground to overcome the shock phase and be prepared for producing the fresh yield.

Are these weed killers safe for Children and Pets?

There is a set of precautions for usage of these formulas for preventive measures. Always ensure you go through the complete instructions as well as warning labels on each product before use.

It is advisable to keep the children as well as pets at a good distance when the application is in process to ensure no harmful effects. Plus, you should also cover yourself completely when applying to avoid it from coming in contact with the skin and harming it in any way.

Sensitive body parts like the eyes, should be covered too especially while spraying to avoid any droplets from entering the eye. In case it still happens, immediately wash them with water for 10-15 minutes as a basic precaution.

Since these products are designed to kill the weeds, they are potentially dangerous if swallowed by animals or humans; so always store them out of reach and covered and enclosed for greater protection.

Furthermore, it is better to keep the children as well as pets away from the area until the first downpour to wash out any harmful effects of the chemical on both.

When Should I Apply a Weed Killer?

Before any application you need to ensure that the lawn is ready; it must be of good growth, you may mow the lawn after a day or so of application to give it a neater appearance. Plus, the lawn health overall should be good for the effectiveness of the spray.

For the best results, the weather should be favorable i.e. dry but not too hot. However, there are various options available in the market today that can resist rainfall too. The best months for using these chemicals is from April to September, where June and September, being the dry and normal temperature months are the prime months for your lawn to look beautiful.

Moreover, you can spray your lawn just a week or two after fertilization. It is best to apply the spray when the weed is most active. Avoid watering and give it sufficient time to deeply entrench the leaves.

Conclusion

So, why let your lawn suffer in terms of beauty and health with these darn annoying weeds? Employ one of these top weed control solutions and sit back and see your garden get back to its fresh, green state without spending hours plucking and cutting away each unwanted twigs.

You can read more about gardens and beauty here on this website. We hope this review helps you in making the best decision for choosing the best weed killer for your lawn.