Dandelion Killer

Best Dandelion Killer

Though many are fascinated by dandelions because of their adorable yellow flowers and medicinal value, they could get annoying if they are not kept under control.

Weeds is a subjective term that stands for anything you don’t want to grow within your lawn. If dandelions stand in the way of your gardening preferences, you might as well do something to keep them from growing further.

To fight their rapid spread, you need to tap on good quality herbicides! Let me guide you in checking out some of the great herbicides that will protect your lawn.

Read our Best Dandelion Killer Review to find out.

Ortho Weed B Gon Weed Killer for Lawns Ready-To-Spray2, 32 oz.

Ortho Weed B Gon Weed Killer for Lawns

This beast is quite straightforward to use. You can connect it directly to your garden hose and apply it by spraying. It contains chemicals powerful enough to kill more than 250 kinds of weeds yet does not damage your lawn. The product comes along with an instruction in achieving a mix that will effectively kill dandelions or other broadleaf weeds, and maintain your grass.

There are different product options you can choose from depending on how you want to apply it and what type of hose or sprayer you have at home like tank sprayers, comfort wand or the regular garden hose. Just spray it directly to the weeds you want to remove, then wait for it to wilt in a week's time. For large areas, you can opt for a wand sprayer to save effort and money.

An important note you have to consider is being careful in following the instructions on how to mix. The more accurate the mix, the greater the effect will be. This weed killer is highly effective for dandelions, but may not be great for killing certain weeds like the creeping Charlie or crabgrass. The waiting time might be long for you if you want immediate results so you need to be more patient.


  • Fairly priced
  • Rainproof in just 1 hour
  • Noticeable results in hours
  • Comes in concentrate or spray container


  • Dispenser might not be durable
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Ortho Weed B Gon Plus Crabgrass Control Concentrate2, 32 oz

Ortho Weed B Gon Plus Crabgrass Control

This is another great product for putting an end to your dandelions so your grass can flourish. The approach is very simple! Just follow the instructed mix, attach the sprayer and you’re good to go! This weed killer has a substance called Quinclorac that can prevent your dandelions from growing back by killing it down to the roots. You have the option to purchase Ortho’s sprayer or any compatible sprayer you have.

Concentrate products such as these give you the flexibility in adjusting the mix depending on the extent of the weed invasion and size of your area. You may use a separate container for the adjusted mix and pair it with any sprayer. For better results, it is highly recommended to use the product during a dry and sunny day with less wind. If you have ornamental plants, you might want to avoid including it during spraying as it might harm it.

For cleaning an entire yard, you can employ a power wand to save more time and energy. After application just wait for a week or two for the results.

While this productive can be used for dandelions, it more suitable for crabgrass as its name suggests. Last thing to note though, there might be a strong odor that lasts for several days right after applying the product.


  • Can be paired with Ortho sprayer for easy use
  • Power wand works great
  • Contains Quinclorac which prevents seed germination
  • Quite expensive


  • Produces strong chemical odor
  • Best for crabgrass, not best for dandelions
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Roundup For Lawns3 Ready-To-Spray (Northern), 32 oz. Lawn Safe Weed Killer

Roundup For Lawns3 Ready-To-Spray

If you’re looking for a great plug-and-spray weed killer for dandelions, this might be helpful. Its body is furnished with a socket where you can simply connect your hose, flip the water switch on, and start battling these pesky weeds. The product contains a formula designed specifically to target 250 types of weeds so it won’t bring harm to your lovely lawn.

This product contains 2,4-Dichlorophenoxyacetic acid and Quinclorac, which are ingredients that proficiently destroy weeds down to its roots. The 32 oz spray can take care of an area of up to 5,000 ft – an awesome feat indeed! For greater effects, you would need to coat the whole surface area of the weed and not just spray a few parts of it.

During application, you need to take extra precaution that you won’t spray your flowers. Though it won’t kill them, it might cause a negative impact on their growth.

If weeds come back a week after the application, you may need to apply a second or third dose to fight if off, depending on the maturity of dandelions. A chard is included in the package to guide you with the dosage and corresponding rainproof and waiting time to see visible results.


  • Comes with usage chart
  • Refill is purchasable
  • Highly recommended


  • May not be effective for users in Southern area
  • Packaging easily leaks during delivery
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Spectracide HG-96624 Weed Stop for Lawns Plus Crabgrass Killer Concentrate, 40-Oz, Black

Spectracide’s Weed Stop for Lawns Plus Crabgrass Killer Concentrate

This product from Spectracide is also impressive when it comes to killing dandelions. The concentrate purposely attacks the roots of the weeds to drastically limit the chances of germination. Aside from dandelions, this can also be deadly to crabgrass, clover, foxtails and other weeds listed in their 250-item chart. The product is rainproof for up to 3 hours, preventing it from washing off immediately. A single bottle can already cover an area of about 6,250 square feet.

You can use this concentrate in two ways. First, you can purchase the model that you can just connect your hose and the water mixes with the chemicals inside. Once thoroughly mixed, you can start the application. You may also do the mixture manually based on the instructions provided, and transfer it in another container with a mounted sprayer.

There is a catch however in using this product. You have to use it in a specific temperature range to increase its effectiveness. You must use this when the temperature is between 45 and 90 degrees since some varieties of weeds are hard to kill. Using the product within this range will allow the weed also to better absorb the product. Be careful however, that you do not go beyond 90 degrees as it can already be damaging to your lawn.

Many have rated this product as an all-around weed killer because of its great performance. 


  • Easy to apply
  • Wide coverage


  • Rainproof within 3 hours
  • Takes longer time for visible results
  • Need to use in specified temperature range
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Eliminator Weed and Grass Killer Liquid Super Concentrate, 32oz

Eliminator Weed and Grass Killer Liquid Super Concentrate

Dandelions won’t last long with this thing. The product is loaded with 32 ounces of 41% concentrate that can be blended with water to create up to 21 gallons of solution.

Just like other weed killers, this product has the capacity to inflict fatal damage to other weeds such as poison ivy, clover and crabgrass. When using the product, make sure to wear cover pants, long sleeves and gloves to protect your skin as the concentrate might cause skin problems.

While many have commented negatively on the effectiveness of this product, it is a matter of following the instructions. Part of the instruction is to not perform any mowing or cutting before using. This is because the concentrate works through the leaves first to infiltrate the system of the plants. By cutting down the weeds before application, it won’t stunt its growth even if you soak the ground wet.

For this product, you may have to wait for two weeks to see full results. Many have grown impatient waiting for the output but it may take longer for other weeds depending on the type and maturity of the weeds. You may use the product as an affordable alternative in dandelion extermination as the other weed killers are a bit pricey.


  • Inexpensive
  • High concentration can make more solutions


  • Not as flexible as other brands
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Why Remove Dandelions

Dandelion Killer

Technically speaking, the Dandelion (Taraxacum officionale) is not a weed but a flowering plant with a heap of benefits. The whole plant is loaded with vitamins and antioxidants that could boost your health. However, despite the plant’s health benefits, they can become a nuisance when they grow on areas you don’t want them to.

Seeds easily get carried away by the wind and can propagate on the area where they land. Their taproot can grow up to 10 inches long, which can be quite difficult to uproot.

Different Methods of Killing Dandelions

There are two common ways in removing dandelions, either you pull it out manually or use an herbicide. The former may work, especially if there is only a few plants to remove. However, if you are going to remove an entire yard of dandelions, it will entail a tedious labor. This is where you will need herbicides. These products contain substances that were developed to inhibit the growth of dandelions and other similar weeds.

Herbicides penetrate the plant through the leaves then work all the way down to the roots to kill the whole plant. The good thing about these products is they don’t do any harm to the surrounding grass or plants for as long as you strictly follow the formulas in the instruction. 

Different Types of Weed Killers

Before you make a random purchase of any weed killer available, it is important to know the different types of weed killers. The better your knowledge on the type to be used, the better you can determine what type will work for you. Weed killers can be classified according to the following types:

Contact Type

This kind of weed killer kills any weed it comes in contact with. The herbicide enters the plant’s system through the stomata of the leaf. Think of the stomata as the door of the plant that needs to be open for the infiltration to be successful. However, the stomata opens only during the time that its growth is active and photosynthesis is happening. Thus, the best time to use this type of weed killer during the plant’s growing season and early times of the day.

Systemic Type

Most weed killers can be categorized as systemic, which means that the weed killer needs to access the plant’s internal transport system so it can kill it from the inside.

Residual Type

If you want to kill the weed and also render the soil unusable for many months up to a year, this will be of help. These weed killers contain a substance that could poison the soil around the plant. Once used, you will not be able to utilize that portion to grow any other plant or flower for months. This is because the substances will reside on the soil for quite a while, making it uninhabitable. Ideal applications for these weed killers would be areas outside the house where you do not want any plants to grow like driveways and paths.

Selective Type

As the name implies, these weed killers intentionally target a certain weed but preserves the surrounding plants or grass. When applied, the product will only affect plants with broad leaves like dandelions and daisies and having no effect on plants with narrow leaves.

Non-Selective Type

Obviously, if selective types will target a certain weed, these types will not give any care to whatever it comes into contact with just like contact-type weed killers. The difference here is that they cause severe damage to any plants so you should be careful in using this product. Do not ever spray in windy weather as the solution might drift away into plants or flowers.

Factors to Consider in Applying Dandelion Killers

You may have the best dandelion killer in town, but if you are not fully aware of all important factors during application, your success might turn into failure, resulting into additional costs due to repurchasing.

Moisture Level

This can greatly affect your application as the presence of water or rain will dilute the solution. The mix you have meticulously prepared will not be effective anymore. If moisture is very heavy, there is a high tendency for the solution to runoff, and your weed killer cannot enter the leaves of the plant successfully.


Applying during warm temperature works best for weed killers as it promotes better absorption. This will also help avoid droplets to be off-target during times of high moisture.


It is also imperative to assess the wind condition before applying your weed killer. High wind speed can interfere with your application and may cause some sprayed droplets to drift off from the targeted weed. The recommended wind speed is 3 to 7 MPH.


Nozzle type will control the droplet size which will depend on the type of weed you are dealing with. Also make sure that nozzles are clean and free from any dirt to avoid any blockages during application.


The mix will depend on what type of plant to be used and the size of the area. For dandelions, there is also a specific mix, so you need to carefully follow what is being stated in the guide.


It’s a close matchup of all weed killers as they all accomplish the goal of killing dandelions if properly executed. However, if we consider all the factors such as quickness of results and pricing, the clear winner would be the Ortho Weed B Gon Weed Killer. The product is highly recommended by most gardeners because of its excellent performance and its price point is still affordable.

Our runner-up would be Roundup For Lawns3 Ready-To-Spray since it still performs superbly while not selling at a very high price. Third goes to Ortho 9906010 Weed B Gon Plus Crabgrass Control Concentrate2. Although it is bit pricey, the high concentration is really a requisite for effective killing of dandelions.

The last two would go to the remaining two Spectracide and Eliminator Concentrates. Both are still valuable products, but their concentrations may not be comparable to the other three. 

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