Best Weed Killer 2019: Buyer’s Guide & Reviews

Dealing with weeds in your lawn or garden might cause you to lose your patience. It’s because taking care of these supposed to be beautiful areas of your home can become costly and hectic when there are weeds that seem to crop up constantly. Note that while some of these weeds are quite easy to get rid of, they still have the tendency of growing again within just a short period. With the best weed killer, however, you can prevent them from growing ever again.

Through a high-quality weed killer, you can easily control and kill weeds and prevent them from ruining the look of your lawn or garden. Note that proper garden and lawn care can help enhance the beauty of your home. It plays a major role in any home improvement project considering the fact that it also works in increasing your property’s value. It can bring out the best in your home, so it’s a must to look for the most effective weed killer that will guide you in ensuring that it continues to bring out its excellent condition.

10 Best Weed Killers Reviews of 2019 (Safest Products Updated: May 2019)

1. Doctor Kirchner – Best Choice

Doctor Kirchner - Best Choice

If you wish to invest in the best natural weed killer then it is highly advisable to check out this popular product from Doctor Kirchner. It is an all-natural, non-selective, contact weed killer, which means that it is safe to use while working effectively in killing all types of grasses and weeds you are targeting. Just make sure that they are in their post-emergent form as this weed killer is designed to work in that case.

Since it is all-natural, you can also consider it as a weed killer without glyphosate or any harmful chemicals. Even without glyphosate, this all-natural herbicide is still fast-acting, allowing it to give you the results you wish within just an hour. The majority of the sprayed or targeted weeds will also be killed overnight. Also, rest assured that its rainproof protection will be activated within 30 minutes to an hour.

What’s Special about the Product?

One special benefit of this weed killer is that it is safe, organic, and natural. It even serves as one of the best gift ideas for someone who wants to deal with his/her weed problems in a safe and natural manner. It is non-toxic, too, which means that it is friendly to the environment while being totally safe to your pets and the people around your home.

This solution is composed of ocean water and vinegar, which is very convenient to use because it does not require mixing. It’s also designed to kill the roots of the weeds quickly without causing you to worry about the potential effects of harmful pesticides.

Grasses the Product Kills: This product is non-selective, which means that almost all types of grasses will be killed from any contact with it. This makes it suitable for use on mulched areas, pool decks, hardscape, borders, gardens, and pavers with grasses and weeds you want to eliminate completely.

Read more: Natural Weed Killer: The Definitive Guide [2019]

2. Espoma Organic Weed Preventer – Safest for Kid and Pet-friendly

Espoma Organic Weed Preventer

If you are seriously considering of investing in a kid and pet-friendly product then the Espoma Organic Weed Preventer is worthwhile to check out. It’s one of the best organic weed killers you can find in the market as it is all-natural and guaranteed to be one hundred percent safe for both kids and pets. It is a selective and systemic weed and grass killer, which guarantees an excellent performance when used on pre-emergent weeds. It has a 25-lb. pack capable of covering an area of up to 2,500 square feet.

You can actually apply this organic weed preventer two times every year, preferably during the early spring and the fall seasons. It’s known to be rainproof but it’s advisable to water it lightly after applying if you don’t expect rain within 24 hours. Expect it to produce your desired results in as little as 12-24 hours. The results are also long-lasting as it inhibits the development of roots in seedlings.

What’s Special about the Product?

This organic weed preventer is so special in the sense that it can provide your lawn with all the nutrients it needs to guarantee lusher and greener growth. It makes use of an organic, pure, and corn-gluten formula, which is natural and safe for kids and pets while still doing a great job in inhibiting the growth of weeds.

The formula it uses is also easy to apply. It’s a good choice if you want permanent results as it kills weeds permanently. Furthermore, it is effective in withering the vegetative condition of weeds quicker when compared to other products. It doesn’t trigger skin irritation and respiratory issues, too.

Grasses the Product Kills: Annual bluegrass, Curly dock, Black medic, Dandelion, Green foxtail, Barnyard grass, Smooth crabgrass, Large crabgrass, Yellow foxtail, Orchard grass, Common Lambsquaters.

Read more: Pet-Friendly Weed Killer: A Ultimate Guide

3. Green Gobbler Vinegar Weed and Grass Killer Best Organic Weed Killer

Green Gobbler Vinegar Weed and Grass Killer

If you’re searching for a natural and organic weed killer that works without leaving harmful chemicals in the soil and endangering pets, fish, birds and mammals, you might want to check out the Green Gobbler Vinegar Weed and Grass Killer.

The Green Gobbler has been around for quite a while and since then has been a favorite weed solution for homeowner and even landscapers who want to keep a healthy lawn and garden.

It is safe to use anywhere in commercial, residential, agricultural or industrial places without harming the surroundings. The grass killer only targets annoying weeds and grasses and does not contaminate water systems and the soil.

You can apply it anywhere you don’t want the grasses and weeds to be. In addition, you can use the product on pavers, mulch beds, parking lots, pavers, farmlands and other places. More so, you can also use it out the container without any long and tedious processes.

This weed controller is also backed by a 30-day money back guarantee, giving you peace of mind you can ask for refund if not satisfied with the product. The best part is that there are no questions asked.

What’s Special about the Product?

The weed killer is safe for organic use, so you can be certain that you can get rid of and desiccate all grasses and weeds without any toxic chemicals and ingredients.

You can rely on this weed eliminator in terms of effectiveness but without the toxic chemicals that would harm the soil, water systems, mammals and fish.

What makes that possible is that it contains only listed OMRI weed killers and corn. It is certified for organic use but at the same time is made of powerful formula.

It contains no additives, VOCs, glyphosate and other cancer-causing chemicals. This solution is four times stronger than your table vinegar is.

Grasses the Product Kills: The weed and grass killer can get rid of weeds and grasses you don’t want in your lawn or garden. There is no need to dilute it but just put in your spray and start using. It works fast especially on white clover, crabgrass, dandelion and clover weeds. You can also rely on it against musk thistle, creeping Charlie and oxalis.

4. Natural Armor

Natural Armor

This Natural Armor is the high-quality product for gravel that you need if you’re looking for a non- glyphosate concentrate, which makes its safer than other products are.

It is a safe, non-toxic and environmental-friendly, killing annoying grasses and weeds but without harming plants and pets. It is a chemical free and poison-free weed killer made of an all-natural concentrate to kill weeds fast.

The Natural Armor is reliable but non-toxic. With it, you’ll think that you have killed the pests with torch but without leaving any dangerous chemicals behind.

It is non-contaminating for the home, garden and lawn. It won’t harm fish, pets, mammals, birds and ground water.

This grass and weed killer is also very easy to use, requiring no diluting or mixing with water at all. The product is a winner in terms of convenience. All you have to do is to put a little on the spray and then go.

In addition, this product is fast acting, giving you the results you want in hours, not days. In that case, you can move on quickly in your life, as you can have peace of mind the Natural Armor will work.

So if you want a versatile and apply anywhere weed killer, you might want to take a look at the Natural Armor.

What’s Special about the Product?

One special thing about the weed killer is that it’s convenient to use that you don’t need to waste hours or make a guess if you want to get rid of those annoying invasion in your lawn or garden.

The product is also effective that you don’t have to worry about not doing it right the first spray.

Another thing you will appreciate specifically about the manufacturer is it backed this product up with a money back guarantee. You can ask for a refund if you’re not satisfied with the weed killer.

Grasses the Product Kills: It is a non-selective weed killer. The product can be used anywhere because it is non-selective. It can be used around flowerbeds, trees and shrubs. It is also perfect for fence lines, edging, driveways and barns. You can also use it in patios, pool areas, mulch beds and gravel areas.

5. BioSafe Weed Control Concentrate

BioSafe Weed Control Concentrate

The BioSafe Systems weed control concentrate is a high-quality weed killer for rocks and anywhere you don’t want unsightly weeds and grasses. It’s an OMRI listed organic product that won’t harm the pets, people and nature.

These are only some reasons it is the chosen product for many that want not only an effective but also a safe weed killer. The BioSafe Weed Control is also effective for use in burning down perennial and annual broadleaf grasses and weeds in a matter of hours.

In this case, there is no need to wait for days before the weed eliminator will take effect. It is also your perfect choice if you want an easy to use weed killer so that you can restore the beauty and health of your garden. So if you’re an avid or new gardener, you can depend on this useful ally in keeping and maintaining a lovely lawn.

The BioSafe Weed Control is what you need if you want fast and visible results in terms of destroying unwanted plant cells within hours. You can also have peace of mind with it because it won’t leave any residue behind. In fact, you can start replanting after four days.

What’s Special about the Product?

The weed control is safe to the environment, pets and people, so it is reliable, effective but not toxic.

You can spray it on the walkways, patios and edging to kill unwanted grasses and weeds that also include bentgrass, bittercress, nimblewill, dandelion, pigweed, liverwort and bermudagrass.

It can also will the unwanted grasses and weeds within two hours, and again that without posing any threat to other garden plants, flowerbeds, bushes and pets.

This weed killer will kill the cells of annoying weeds and grasses within hours of application, so no more long waiting time for the results to take effect.

Grasses the Product Kills: It is non-selective, so it can be used on all types of weeds and grasses in the gravel areas, foundations, edging, driveways, fence lines, parking areas, pool areas and pavers. It kills the weeds and grasses it comes contact with, so it should cover these undesirable plants uniformly.

6. Weed Slayer Organic Herbicide Best Commercial Weed Killer (for Large Areas)

Weed Slayer Organic Herbicide

Agro Research International’s Weed Slayer is another product not to miss on the list. It is a high-quality weed killer for large areas that can work effectively but without harming desirable plants and flowers, soil, pets, people and the environment.

It is an organic herbicide that can control and kill weeds and grasses naturally. One thing many people like about the Weed Slayer is that it is made of natural and proprietary ingredient and bio surfactants, which may help in trans-locating the herbicide content through the plants.

It is also made using biologicals, which are used by conventional and organic growers. Using this product, you will be able to kill grasses and weeds safely and effectively. In addition, this weed control is exempt from FIFRA, having minimum risk to the environment.

Weed Slayer can provide you with an effective weed control for hard to eliminate weeds and grasses.

It is a great choice if you would like to eliminate annoying pest in your garden and lawn but without the harmful effects. Using it, you can keep a healthy lawn and garden that will give your family and loved ones a delight.

What’s Special about the Product?

One of the things that make the product beneficial and popular is that it is certified for organic use by the WSDA, meaning it does not contain harmful and toxic elements and chemicals that will damage the desirable plants, people, pets, birds and fish. It won’t also contaminate the soil or deposit poison into the plants.

Another thing that makes the product a popular one is that it is can travel through the plant to kill the weeds at the roots. In this case, the unwanted grasses and weeds won’t grow and invade the garden and lawn.

You will also like that it is a natural herbicide derived from Eugenol, which is an essential oil of clove.

Grasses the Product Kills: This weed killer can control and get rid of weeds and grasses organically, so it won’t cause harm to the environment, pets, soil, people and birds. It is certified for organic use.

7. Natria Grass and Weed Control

Natria Grass and Weed Control

The Natria is a great weed and grass control made of safe and eco-friendly materials. It is among the favorites of avid and new gardeners that want to keep a healthy and lovely lawn and garden. It is an effective formulation of Root Kill Herbicide Weed Killer that you can use easily and quickly.

The Natria Grass & Weed Control can kill even the toughest weeds including their roots and all, making it one of the most effective in eliminating annoying weeds and grasses in the garden.

It is also a great weed control that can deliver you with the results in 24 hours. Using it, you don’t have to wait long before it works and eliminate those stubborn weed and grass fast.

It is also a high-quality weed killer for driveways, asphalt, and bricks and concrete because it doesn’t stain materials. The weed control can also be use on sidewalks, patios and flowerbeds, adding to its versatility and convenience of use.

Without even saying, the Natria Grass & Weed Control is an effective and nature-friendly weed killer that won’t harm the environment and that is safe for use in the garden and lawn.

What’s Special about the Product?

This weed killer is ready-to-use, making it very convenient to use in addition to being versatile. Without even saying, it is a versatile weed killer that you can use for the patios, garden, pavers, driveways and other places and on materials including asphalt, gravel and rocks.

Another thing that makes it special is it is natural and with only safe and non-toxic materials. In addition, the product is also non-selective, controlling many types of listed moss, weeds and grasses fast and effectively.

This product is also a safe alternative herbicide that you can count on to rainfast in three hours and without staining materials. Using it, you can re-sow the area in five days after treating it.

Grasses the Product Kills: The product can be used on moss, grass, weeds, brush, algae and vines and in areas where tough weeds are growing and invading the garden and lawn. It can eliminate clover, dandelion, poison ivy and common groundsel. However, you should not use it on lawns because it can kill grasses.

8. Preen Garden Weed Preventer – Best for Flowerbeds, Vegetables, Trees and Shrubs

Preen Garden Weed Preventer

If you are searching for a selective weed killer then the Preen Garden Weed Preventer, which works perfectly for flowerbeds, shrubs, trees, and vegetables is a perfect choice. Note that it is designed for pre-emergent weeds, too, so it won’t be able to stop and control weeds that are already existing. What it does, instead, is it prevents weeds from germinating in various areas, like around the shrubs and trees, ground covers, and in vegetable and flower gardens.

You can use it to treat an area, which is around 900 to 5,000 square feet. It is also a wise move to invest in this product as you can apply it anytime during the summer, fall, or spring. It can prevent the growth of new weeds for a max of three months. This weed prevention solution is also totally rainproof so expect rain to be unable to wash it out from the soil.

What’s Special about the Product?

One thing that is so special about the Preen Garden Weed Preventer is that it works as a multi-functional product. Even if you are still seeding veggies, it’s still possible for you to use it to prevent weed growth by mixing it with soil. It is also useful on mulching beds. Another special feature of this weed preventer is its rainproof formula, which means that its potency won’t be diminished by rain over time.

This product is also distinctive with its long shelf-life. In addition, it makes use of a slow-release technology capable of suppressing weeds for a maximum of three months. This means that it does not require frequent application to function.

Grasses the Product Kills: Annual bluegrass, Cheat grass, Purslane, Stinging nettle, Dandelion, Dog fennel, Poison ivy, Prickly lettuce.

9. Scotts Halts Crabgrass and Grassy Weed Preventer – Best Pre-emergent Crabgrass Preventer

Scotts Halts Crabgrass and Grassy Weed Preventer

If your goal is to stop weeds, crabgrass, and other grasses from penetrating your lawn and causing damage the entire season then the Scotts Halts Crabgrass and Grassy Weed Preventer is your ultimate choice. It can be categorized as a selective systemic weed controller and preventer. A single application on a 5,000 to 15,000 square feet area can already prevent the growth of crabgrass and weeds all season long. It causes unwanted grasses and weeds to die and wilt within just a couple of days.

To see immediate results, it is advisable to apply this solution during the spring, especially if your goal is to prevent the growth of problematic weeds and crabgrass. You can also apply it during the fall if your objective is to avoid the development of moss. Since this product targets pre-emergent weeds, it is appropriate for use on established lawns as it does not cause damage to the flowers and grasses you want to cultivate. In addition, it’s rainproof as it still works even if it’s raining or snowing.

What’s Special about the Product?

There are several reasons why you’ll love this crabgrass and weed preventer. For one, it’s really efficient in getting rid of crabgrass infestation without having to use harsh chemicals. Offered at an affordable price, you do not also need to spend too much just to be able to control the weeds in your lawn. It can prevent the sprouting of nasty weeds, like chickweed and henbit, too.

Most of the ingredients used in this product are also safe. In fact, you can expect such ingredients to stay active for a long period regardless of the environmental condition they get exposed to. Furthermore, it’s easy to use and provides quick and lasting results.

Grasses the Product Kills: Crabgrass, Foxtail, Yellow woodsorrel, Spurge, Annual bluegrass, Chickweed, Henbit.

10. Scotts Turf Builder Weed and Feed Fertilizer – Best Lawn Fertilizers and Weed Killer

Scotts Turf Builder Weed and Feed Fertilizer

Another highly recommended product is the Scotts Turf Builder Weed and Feed Fertilizer. Many consider the weed and feeds fertilizer from Scotts a great product to invest in because aside from covering a wide area (around 5,000 to 15,000 square feet), it’s also multifunctional. It lets you take advantage of a weed killer and a lawn fertilizer in just a single product. When it comes to killing weeds, note that it can handle pre-emergent ones and falls under the selective systemic type.

To guarantee an excellent performance, use it during the active growth phase of the weeds, especially during the late spring. The daytime temperature during the application should also be between 60 to 90 degrees Fahrenheit. It’s possible for the product to give you your preferred results in as little as 12-24 hours. During the 24-hour period, avoid watering the treated area to give its rainproof function enough time to take effect.

What’s Special about the Product?

One remarkable benefit of this weed killer and lawn fertilizer from Scott is that it makes use of an improved and new formula, which is two times as powerful when it comes to regulating and dealing with tough weeds, like clover and dandelion. It also makes use of the Weedgrip technology. What makes this technology special is that it applies a strong grip to weeds, whether they are visible or not, as a means of killing them efficiently.

It also performs two functions – controlling unwanted weeds and thickening your beneficial plants and grass. It also does a pretty good job in clearing out your lawn from clover and dandelions.

Grasses the Product Kills: Dandelions, Plantain, Mustard, Ragweed, Clover, Chickweed, Carpetweed, Bull thistle, Kentucky bluegrass, Ryegrass.

What Should You Know Before Buying a Weed Killer?

Before investing in the best herbicides or weed killers, it’s essential to become familiar about its different types first. Note that there are two common types of weed killer – the pre-emergent and the post-emergent. Understanding how each of these types of weed killer works can help you pick the most suitable one for your specific needs.

Pre-emergent Herbicide

It is crucial to note that this type of weed killer is incapable of stopping the whole weed germination process. What it does is that it interrupts the process prior to causing a sprout to push through a soil. One example of this type is a crabgrass killer and preventer, which works by preventing the seeds of crabgrass from growing new plants. If you’re planning to use this type then it’s advisable to treat the whole lawn area. Note that missing a spot might only cause weeds to sprout there.

Post-emergent Herbicide

You may also use the post-emergent herbicide if you’re planning to handle annual broadleaf and perennial weeds. These refer to weeds shaped like leaves but don’t resemble grasses. This type can also control weed and grass. You can pick the post-emergent type if you wish to control and kill the weeds in your lawn. It is also an effective choice during the start of the spring season when plants already begun to grow. Note that once plants begun growing, it’s a bit too late to prevent germination using the pre-emergent type, so it would be best to go for the post-emergent weed killer.

Aside from learning the two mentioned types, take note that weed killers also work based on two ways – the contact and systemic application.

  • Systemic – A weed killer for lawns that works using the systemic application tend to be brought by the foliage. It is then transported to the remaining plants, including the roots. The systemic lawn weed killer can be expected to inhibit the growth of weeds in a hormonal manner by minimizing the amount of chlorophyll and protein present in the plant. It often takes around two weeks for this type to eradicate the plants completely and produce visible results.
  • Contact – If you want to know how to get rid of weeds forever in a specific area then the contact weed killer is probably the best solution for you. It attacks a specific weed or some weeds that thrive in a specific area. It works by killing the plants only or their parts. It is also known to be fast-acting. It is appropriate for annual weeds. While it is incapable of killing the roots, it is effective in weakening the plants through repeated applications.

When trying to get to know more about weed killers, you may also come across the terms selective and non-selective. A selective weed killer won’t be able to kill all vegetation it comes in contact with. It tends to kill the weeds only while leaving the remaining grasses in your lawn. With that, it’s an ideal choice for you if you have an established loan. The non-selective type, on the other hand, tends to kill almost all that it touches. These include flowers, veggies, and grasses. This makes this type ideal if you want to clear some areas of your ground or lawn.

Factors to Consider when Buying a Weed Killer

Choose the Best Weed Killer

Managing weeds is actually a tough and challenging task for a lot of people because of several reasons. One reason is that these weeds tend to grow faster in comparison to beneficial plants. You can also expect them to survive in most soils and environmental conditions while starving your lawn of nutrients, causing the stunted growth of your plants.

If you want to find the most appropriate weed killer for your needs then this buyer’s guide will be of help to you. With this buying guide, you’ll definitely know the different factors that will contribute a lot in choosing the best liquid weed killer for lawns or the perfect herbicide for your unique requirements:

Targeted weeds

The first factor you have to consider is the specific type of weed you wish to target. Note that the best herbicide for you is that which is capable of killing the specific weed species that are thriving and invading your home and lawn. Before making your purchase, spend time examining the unwanted weeds and invaders that grow in your lawn or in any other areas of your home.

Among the weeds that you may have to deal with are annuals, such as foxtail and crabgrass. Your lawn may also have perennial weeds, such as dandelions, plantain, and nutsedge – all of which are more difficult to control when compared to the annuals. Research about the specific weed that you’re dealing with. That way, you can find an herbicide, which is really effective in doing complete weed kills and control.


Another factor that you have to consider is the effectiveness of the product. Prior to buying, you have to conduct an extensive research about its effectiveness in killing weeds in your lawn. You will also learn about the effectiveness of the product by studying its main ingredients as well as reading legitimate customer reviews. The best product continues to receive positive reviews from its users.


It is also crucial for you to decide on the type of weed killer that you have to use. Will it be the contact weed killer, which kills only those plants and weeds that come in contact with it? Or will you choose the systemic weed killer? You can actually make your choice between these two types by figuring out the majority of weeds and grasses that are presently thriving and invading your space.

Intended purpose

Before you make your purchase, it is also advisable for you to determine the specific purpose you wish the herbicide to fulfill. Is it going to be to prevent the emergence of weeds? Or is it to get rid of the already growing ones? In this case, you have a choice between the post-emergent and the pre-emergent herbicides.

If your goal is to prevent weeds then go for the pre-emergent type. However, if you want to target those grasses and weeds that are already thriving and growing then the post-emergent weed killer is right for you.

The amount of herbicide or weed killer required

It is also crucial to decide based on the specific amount of herbicide or weed killer you need. If you wish to treat a small area only then it would be more convenient for you to use a ready-to-use herbicide, which you no longer have to dilute with water. However, if you’re planning to treat a wider area with plenty of weeds then it’s advisable to pick a concentrated product, which is known to be more economical.

Avoid buying an herbicide without calculating the area you’re planning to treat first. This will give you an idea about the size or weight of herbicide or weed killer you specifically need. It also ensures that you won’t be storing too many herbicides in your home that you no longer need.

Ease of use

Another important consideration is how easy it is to use the weed killer. Avoid buying one, which requires complex steps when it comes to its use and application. You should have an easier time preparing it. Furthermore, it should have a straightforward application. That way, you can use it to manage weeds in your lawn and garden with ease.

Level of safety

Another thing that you have to do prior to buying is to check the formula and components used in the herbicide. It should have a high level of safety. It should be non-toxic and should contain non-irritating ingredients. If possible, go for a natural one, which is not harmful to the environment as well as to the people around your home and your pets.

Once you have made your choice, do not forget to read the instructions indicated on its pack carefully. Note that each product requires you to follow a different formula for blending water and ingredients so you really have to dedicate some time reading its instructions. You need to follow all the instructions precisely to guarantee a more successful experience when controlling and managing weeds.

DIY Weed Killer: Pros and Cons

As the name suggests, a homemade weed killer is a solution that you can prepare at the comforts of your own home using certain ingredients. Fortunately, it is not that hard to do considering the many DIY weed killer recipes that are now introduced on various sources, like in the internet. The majority of these recipes actually make use of certain ingredients that you can find at home, including salt, vinegar, and soap.

So what are the most commonly used weed killers that you can make at home? What are their pros and cons? Here they are:


One option for the best DIY weed killer that you can use is household vinegar, which has around 5% acetic acid concentration. What’s good about acetic acid is that it’s a desiccant, which means that spraying it on a plant’s surface will draw out the moisture from its leaves, thereby killing its top growth.

It’s actually effective if you’re dealing with invasive plants, like Canada thistle, and some weed species, especially young ones. However, it’s not that effective when used on more mature weeds and perennials with more developed and robust root systems because it only works in killing the topmost part of the plant.


Just like vinegar, you can also expect salt or sodium chloride to work as a desiccant. You can add this in a DIY herbicide recipe because of its ability to deal with those unwanted plants that vinegar can’t seem to kill. Salt is really potent and powerful in the sense that it works effectively in killing and getting rid of unwanted plants, grasses, and weeds.

However, it also has a disadvantage as it has a long-term negative impact on the soil. It also tends to negatively affect the roots of those plants that are close to the ones you’re targeting.

Citrus Oil

Citrus oil works as a DIY weed killer because of its ability to strip the waxy coating from weeds, causing them to get dry. It also contains d-limonene, an active ingredient, which tends to result from squeezing oranges right after removing the juice. It is beneficial, especially when used on pathways.

Another advantage of citrus oil is that it is easy to use and spray. It’s also safe to use around kids and pets. One problem with citrus oil is that it is not as strong compared to commercial weed killers. You might also need to use several doses of this solution just to produce your desired results in terms of killing weeds.

How to Use Weed Killer Safely and Successfully?

Once you have chosen the appropriate type of weed killer designed for the purpose you have in mind, it is time to start the task of controlling and killing weeds. But how can you do this task safely and successfully? Here are some tips designed to help you take control over your lawn through effective, safe, and successful weed control and management:

Read the label

Prior to applying your chosen weed killer or herbicide, it’s essential that you carefully read its label. The label will give you information about the specific purpose of the product, safety information, instructions on proper usage, disposal and storage, as well as its level of toxicity. It will also give you a clear idea about the protective equipment and clothing that you need to apply the weed killer. Make sure to stick to what’s instructed in the label to guarantee your safety.

Do not spray during an extremely hot weather

Again, check the label of the product to determine the best time and temperature to apply it. Follow it to avoid amplifying the stress experienced by your beneficial plants and grasses. Spray during wind-free days, too. Do not forget to wear gloves during the application as the chemicals in the herbicide might cause eye and skin irritation.

Carefully target the weeds

Do that, especially if you are planning to use a broad-spectrum weed killer, like those containing glyphosate. Since this type of herbicide has the tendency of killing the majority of plants it comes in contact with, you have to be really careful when targeting those that you want to get rid of. One way to handle this is to utilize a weed wand. You may also soak a cloth or sponge into the solution and paint the weeds with it instead of spraying. Such ensures that it will hit its target.

There should be no irrigation or rain within 24 hours after application

Twenty-four hours is usually the standard period of waiting before you can let the treated area get exposed to rainfall or irrigation. It is because most herbicides are designed to stay in the foliage for that period to work.

Before applying, check whether no rain or irrigation will happen so you can spray accordingly. During a hot weather, it would be best to water your lawn one day before the application of the weed killer as this will provide the area with more resilience.

Avoid mowing the lawn for 2-3 days prior to applying the weed killer

Note that this product needs to be absorbed by the weed’s leaves. If the weeds are short because of mowing then there’s a great possibility that it will only absorb less chemicals. If you need to mow the lawn then wait for a few days first after that before you start spraying.

With these tips, you have a higher chance of killing all the weeds in a safe and successful manner. Make it a point to attack them as early as possible so you will have an easier time fully eliminating them.

Frequently Asked Questions: (FAQs)


How long does it take for weed killer to work?

A weed killer or herbicide generally comes as a strong concentrate made of weed-killing materials to kill the weeds and grasses. And one of the most common questions is how long it takes to work before it takes effect.

Some of them are worried that the desirable plants won’t be able to survive after spraying the soil with it.

On the other hand, some of them want to know if the weed control is potent enough to kill the weeds in that particular time or not.

In terms of how long it will take for the weed control to work is dependent on some factors, including climate. For example, it might not work as fast if you’re spraying during a cold or moist atmosphere.

In addition, spraying during this time can also damage vegetation. According to the experts, spraying should be done in a warm and sunny day. At this time, the leaves and roots are going to absorb the weed control easier and faster, while the remaining concentrate is going to disappear in the air.

More so, applying pesticide at this time will not also harm the desirable flowers and plants. You should spray in a warm and sunny day so that the weed control can work more efficiently.

And within two days, these annoying weeds are going to turn yellow, and after one or two weeks, the unwanted plants are going to die.

In addition, the weed killer potency is another factor to determine how long it will take to work If it is a strong concentrate, you can see great results within a couple of days.

On the other hand, it might take up to a month before the weed killer works if it not containing high potency materials

If using a strong weed killer, you can see visible results in a matter of days when the weeds and grasses will start twisting.

This action will show that the weed killer is affecting the plant. And then within two weeks, the plants’ color will change and start fading. After, they will die.

For the best results, you should try spraying enough amount of herbicide on the leaves and roots. The latter is going to absorb the concentrate and begin dying.

Now if you’re going to use a weed killer gel, it will stick to the unwanted plants, which will turn brownish, before dying within 48 hours.

How long does weed killer take?

It will depend on the strength or potency of the weed killer. If you’re going to use a stronger concentrate, you will notice it will work faster than a less potent one.

In addition, you can make use of a gel herbicide if you want it to work faster, too. It can stick with the plant and eventually kill it fast. Overall, the time it will take for the weed killer to work will depend on the potency and type of herbicide you’re using.

But for safety, you might want to take a look and compare your options on the choices we have listed earlier. Any of them is a great choice for a weed killer that works effectively and safely.

How to apply weed killer?

It is another common question among those interested to apply a weed control by themselves. First of all, take note of the types of herbicides. One is the pre-emergence types.

They are commonly used in established lawns in order to disrupt the life cycle of the weeds especially among summer weeds, some of the most stubborn. At the very least, pre-emergence weed killers stop the seeds from germinating.

But for the best results, you should time the application by spraying before the seeds start germinating commonly in the early spring. You can also reapply the weed control about eight weeks following the first spraying in order to help with the invasive weeds like crabgrass.

On the other hand, there are post-emergence weed killers that kill the weeds upon contact. They are absorbed by the plants, which eventually die. But for the best results, the weed killer will work best if applied to young weeds.

However, if you’re going to deal with established weeds, like woody shrubs, you can get a better result if you would cut the weed to the ground, and then wait for new shoots and leaves to appear.

When should you apply the weed killer? You might want to apply it during the dry weather. If not, the herbicide will be rinsed off by the rainwater from the surface for treatment. Also, some of the remaining effects will also be diluted, making it less efficient.

You should also think about a weather-timing situation, so you have to think about wind particularly if you’re going to apply nonselective herbicides or glyphosate, which can kill all the plants, such as flowers and vegetables.

On the other hand, a windy condition can create an herbicide drift, distributing the chemicals onto different areas and killing even the desirable plant.

Other things to remember to apply a weed killer:

Applying a weed killer must be based on a timeline. For example, you have to remember that some product will work within days but others within a weeks or even longer. In this case, you should consider your timeline when thinking about applying an herbicide.

What are your needs? For example, if you have to replant within a period of time for concerns like temperature changes, you should think about applying a weed killer earlier.

Also, you have to remember that some herbicides will leave residue, which might remain toxic to the plants for a couple of months. So before selecting a weed killer, you must check and read the label to find out the time it will take to work and the time it will stay in the garden.

When to apply pre-emergent weed killer?

It is important to take note when to apply a pre-emergent that gardeners usually apply in an already established garden or lawn. They are applied with one goal in mind – to disrupt weed life cycle.

At the very least, weed killers are stopping the weeds from germinating. However, you should time the application in order for the weed killer to work. For example, you should time its application before the seeds germinate like in the early part of spring.

In general, gardeners reapply it two months following an initial spraying in order to kill crabgrass and other stubborn weeds.

How long after weed killer can I plant grass seed?                                                 

Depending on the type of weed killer, you should know how long or when you could start planting grass seeds.

For example, the pre-emergence herbicides can target the weeds before they germinate, while post-emergence weed killers can target developed plants.

Before seeding, you must use a non-selective and post-emergent herbicide that will control any weed in places to be seeded. Many of these weed killers can be sprayed or applied for up to two weeks before seeding begin in order to control current weeds.

On the other hand, you should not use herbicides after the seeding, not until the young seedlings have become established. You can do spot treatments and mowing to control the weeds after the seeded areas is growing actively and only needs maintenance watering. Take note that the establishment times will vary based on the seed type and the weather conditions.

Why should you wait before seeding? Feed and weed products can prevent germination or get rid of a living plant, so you should take note that it can have a similar effect on the desirable plants.

On the other hand, there is a pre-emergent herbicide siduron that can help in germinating. But when using one that doesn’t have siduron, you should wait for at least two months before replanting or seeding.

But then, if you’re going to use a weed killer for broadleaf weeds, you should read and understand the label carefully because its active ingredient might need a longer waiting period.

In some cases, you can start seeding in as little as a month following an application if using a weed control with 2,4-D, but up to six months if using products with atrazine.

When to put weed killer on lawn?

You can put weed killer on the lawn depending on several factors, such as climate, temperature and landscaper timeline as mentioned earlier.

For example, the weed control might work slowly if you’re applying the moist or cold atmosphere. It might also damage vegetation if you spray during this time, too.

For the best results, you might want to spray in a sunny and warm day when the weeds are going to absorb the weed control faster and easier while the remaining concentrate will evaporate.

Applying weed killer won’t also harm the desirable plants and flowers during this time. It will also work more effectively than spraying or applying a weed killer in a cold or moist day.

Is weed killer dangerous to dogs?

It will take about 48 hour before it is absorbed into the soil and grass. For this reason, their chemicals, if you’re not using a natural and organic, can be toxic for the pets that can be playing, walking and eating in the grass, which they tend to lick, too.

In some cases, pets also have their water bowls, which can be placed outdoors potentially in or near the grass. Thus, they can be exposed to the toxic chemicals.

And again, if not using organic weed killers, the chemicals from those treated lawns can be transferred to the untreated lawns. As a result, they can also contaminate the pets, which will pass through or nearby the treated yard. In addition, the chemicals can also be transferred to other pets or to people.

To protect your dog, you should keep him away from the treated lawn or garden if it is treated with chemicals until the weed killer has been fully absorbed.

You should also wash your pet’s lower body, including the legs and belly area, assuming they contacted the treated lawn. Put the water and food bowls and the toys away from the treated area.

You should also avoid weed killers with carcinogenic and toxic chemicals in them.

Finally, you can use alternatives in treating the lawn. For example, you can increase the grass’ growth wit organic and slow-release fertilizers. You might also want to use chemical-free and organic ways in treating the garden in the summer.

Why can salt be used as a weed killer?

For centuries, salt has been used as a plant killer. Today, it is still used as a weed killer but in a smaller quantity. Some people use and mix a bit of it with water to make a solution. Then, they apply it to the base of the undesirable plant, which will die in a few days but without harming the plants.

Salt can kill weeds by drying out the cells of the plants because it can suck water out of the roots, resulting to the wilting and dying of the plant in a day or two. When the rain comes, though, the salt will be diluted and safe for the remaining plants. It should harmlessly be dispersed.

Using it once or twice is okay, but not if too much of it is used. It will eventually harm the soil that won’t also be good for plants. In addition, too much salinity will stunt and weaken the plants in your garden; thus, they can be prone to acquiring various diseases.

Where to buy weed killers?

There are many places to buy weed killers. It can be in the local gardening and landscaping stores, The Home Depot, Lowe’s and Walmart. But then, if you want convenience and a wide range of choices, you might want to go for online marketplaces.

So far, the best among them is Amazon where to find the best deals and buy safe, effective and eco-friendly weed controls from the manufacturers themselves. It is also the best online marketplace to search for great brands and buy at affordable prices.

(Source: [1], [2], [3])


Pesky weeds and unwanted grasses have the tendency of ruining the appearance of a meticulously and carefully manicured lawn. Fortunately, it is no longer that hard to find the best weed killer today considering the numerous choices that are now laid out to those who are interested in buying one.

What’s good about most of these products is that they are capable of killing various weed and grass species without damaging the other plants in your lawn. Just make sure to spend time comparing all your options and figuring out your exact needs and requirements. That way, you can make an educated decision, which can help you finally manage the weeds in your garden and lawn.

Best Weed Killer 2019: Buyer’s Guide & Reviews
5 (100%) 1 vote[s]