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How to Fix Dandelion Infested Lawn? – Best Ways to Kill Dandelion

Dandelions are loved by young children for their bright yellow blossoms and their delightfully entertaining, fluffy seed heads, but most lawn-care professionals despise them. Dandelions are a type of weed known as broadleaf perennials, which are notoriously difficult to eliminate. Don’t worry, there are certain ways through which you can fix Dandelion Infested lawn which we are describing in this article.

  • We have also prepared an FAQs section at the end to address your most asked questions related to Dandelion infestation.

Once the 10-inch-long taproot of a dandelion plant is fully formed, the weed will return year after year, spreading its spawn throughout your lawn. If you want to get rid of dandelion for good, you must destroy or remove the entire taproot, or else the undesirable sprout will return with fury.

In most circumstances, the best dandelion killer is one that eliminates dandelions while causing minimal damage to the surrounding grass. If the dandelion infestation is severe, you may need to remove the entire grass and start over.

Where does Dandelion Come from?

Before knowing about different ways to kill dandelions, let’s have a look at where do they come from. Dandelions are a flowering plant native to Europe and Asia that has been utilizing as a herb and medicine since the Roman Empire. European pioneers bring them to the new country for therapeutic reasons and to remind them of home. Pests and illnesses that would typically keep them in check were absent once they were transferred to distant places, giving them an unfair edge over native species.

Dandelion Infested Lawn

Now, Let’s discuss why they are so hard to deal with.

Why it is so hard to get rid of Dandelions?

Wondering why it is so hard to get rid of Dandelions? It’s not your imagination; dandelions are one of the toughest weeds to eradicate. A dandelion’s anatomy makes it a strong opponent that is tough to destroy. By hugging the ground as they grow, they effortlessly dodge your mower blades.

With or without cross-fertilization from another flower, dandelions produce a large number of seeds. The parachute-like seed shape allows them to travel easily in even the faintest breeze, thereby increasing the weed’s territory. A single flower head can contain anywhere from 50 to 170 seeds, and a single plant can yield more than 5,000 seeds per year!

Moreover, Dandelions have deep, powerful taproots that are usually 6–18 inches long, but they can grow to be feet long in optimal conditions. It has been growing by the time you see the dandelion’s beautiful golden blossoms. Also, Dandelions can live for 10 to 13 years if left alone. They thrive in moist soil and full sun, but once established, they can even thrive in dry and shaded environments.

How to prevent Dandelion from Growing?

Now, the time has come to answer your question, How to prevent a Dandelion from Growing.

The best defense against dandelions is to keep the grass lush, and healthy. Cut your lawn to the appropriate height (Not too much) irrespective of the grass variety(s) you have. Why? Because a large lawn shadows the soil, preventing the germination of dandelion and other seeds. In a single cutting, never remove more than one-third of the grass blade.

In addition to this, Mowing down dandelions when they’re blooming can help prevent them from spreading. Although it isn’t a way to get rid of dandelions, it is a very effective way to keep thousands of dandelion seeds from flying into your yard. If dandelions appear in your landscape or garden, mulch to a depth of 2–3 inches to prevent them from growing. It’s simple to pick the entire plant if you detect dandelions growing on the mulch.

After handling the dandelions, you might want to try a pre-emergent herbicide four to six weeks before they grow. It won’t destroy the weeds that are already there, but it will assist prevent seeds from developing. Furthermore, use fertilizer regularly to keep your grass healthy and lush, which is your best defense against dandelions.

Fix Dandelion Infested Lawn
Getting rid of Dandelion weeds are necessary for a healthy Garden.

Best ways to fix Dandelion infested lawn

Now, it is time to know how you can deal with Dandelion Infested lawn. Anyone who owns a yard knows how much dandelions irritate them. Even though their name seems harmless and nice, they are very harmful to grass. Dandelions reproduce by their taproot and through their seeds, which can reach depths of over 3 feet in the soil. This is why they’re so difficult to deal with (eradicate).

You can keep these annoying weeds from taking over your lawn if you use any of these basic techniques.

Use your muscles

The most successful method of removing dandelions is hand digging, but it is also the most time-consuming. It is best to remove dandelions by hand-digging since any residual root parts can revive the weed. Water the dandelions the day before you plan to hand-dig (this makes them simpler to pluck) and use a long narrow instrument on hand to loosen the soil.

Mow them down

It’s time to mow your grass when dandelions’ yellow heads appear. This will keep them from developing into white puffballs with more seeds. If the dandelions have begun to turn, you can also use a bag attachment on your mower to prevent seed dispersal.

Mow High

One of the most effective ways to combat dandelions is to cut your grass using a high blade setting. When the grass is tall, it shades and suffocates dandelion seedlings, thus preventing them from growing.


The best defense against dandelions taking over your lawn is to keep it healthy. Overseeding and fertilizing your grass not only keeps it healthy but even makes it thicker and denser. It blocks out the sunlight reaching dandelions and preventing their seed from reaching the soil.

Cover them

You can cover the Dandelion Infested lawn with mulch or grass clippings, which are a less pleasing aesthetic and a slower procedure. Leaving mulch or grass clippings on the lawn will suffocate the weed by denying it sunshine and oxygen, as well as prevent new ones from sprouting.

Spray them, don’t Torch them

Using a propane torch to singe dandelion heads has been a popular weed-removal technique in recent years. This can help you get rid of them, but it can also harm your lawn, so spray instead! Herbicide spraying on dandelions will help keep them from taking over your yard. There is a range of herbicides on the market that can help you get rid of dandelions, but use them with caution. When handled incorrectly, herbicides can do more harm than good to your lawn. Herbicides, if not used properly, can harm the surrounding turf and be costly and messy.

The best time to spray on dandelions

The most effective herbicide to use against this plant is a post-emergent herbicide that is utilized when dandelions are evident in your lawn. Herbicides containing carfentrazone, sulfentrazone, or triclopyr are also effective against dandelions. In September, after the dandelions have blossomed and are transporting carbohydrates from the leaves to the roots for the winter, this is the perfect time to spray them. The optimal time to apply herbicide in the spring is in May, or when temperatures are over 60 degrees Fahrenheit.

Choose a dry, windless day to apply the herbicide, and make sure there is no rain expected for at least 48 hours. To avoid spray drift onto valuable plants, apply the herbicide directly to the dandelions while keeping the sprayer near to the ground. However, read and observe all safety and application directions on the herbicide label before using it.

Killing dandelions in lawn with vinegar

To kill dandelions with the natural acidity of white vinegar or apple cider vinegar, just simply fill a spray bottle with pure vinegar and spray the undesirable plant. After spraying vinegar, the leaves of dandelions will wither and become brown in a matter of hours. Doing this on a hot, sunny day will fasten up the dandelion’s demise. Pull the plant out after it has died back and cleaned the area with water.

Use of vinegar mixture

If you only have time to attack your dandelions on a cool or gloomy day, lemon juice will boost the potency of your vinegar. Dish soap will help the mixture stick to the leaves, giving the vinegar and lemon juice more time to work against the weed. Choose an all-natural, biodegradable dish soap for this recipe. Combine 1 tablespoon liquid dish soap, 1/4 cup lemon juice, and 1-quart vinegar in a mixing bowl. Fill a spray bottle halfway with this mixture and spray it all over the dandelion. Spray the dandelion again if it hasn’t entirely faded after three hours to get rid of the  dandelion infested lawn

4 Best herbicides for fixing Dandelion Infested Lawn

In lawns and gardens, dandelions can be a serious nuisance. This broad-leaved plant’s beautiful yellow blossoms can spread throughout your landscape, undoing all of your hard work in keeping it healthy. Dandelions are tough to control since you usually don’t notice you have a problem until they bloom. The good news is that you can still kill dandelions. You can fix your dandelion infested lawn by using these herbicides:

Preen Extended Control Weed Preventer

This convenient solution is a go-to tool for millions of households since it can safely be used around 600 plant species, including a range of groundcovers, trees, and perennials. It comes in a variety of package sizes, making it simple to get the proper amount of product.

These herbicides can control over 125 broadleaf weed species, including dandelions. Preen weed preventers can prevent the further growth of weeds other than kill existing weeds. As a result, once the current weeds have been removed and Preen has been applied, the application area will be weed-free for up to 6 months. Thus, your lawn or flower bed will remain weed-free throughout the growing season.

Preen is extremely concentrated and has a precise component blend that targets weeds before they sprout. It’s one application is more than enough to effectively stop weeds from sprouting. It is recommended to use preen in the spring, but if you forget, don’t panic; the product may be used whenever weeds are growing.


  • Starts with a single application
  • After using it, weeds can not grow up to 6 months
  • Various packaging sizes are available
  • Simple to use


  • It should not be utilized in edible food gardens or potted plants

Doctor Kirchner Natural Weed Killer

Doctor Kirchner Natural Weed Killer is perfect for maintaining and establishing a weed-free environment. The product is available in a variety of packaging sizes and will not affect the environment when used, unlike many other weed killers on the market.

The product is biodegradable and environmentally friendly. Its manufacturing includes a combination of natural ocean water, commercial-grade food-safe vinegar, and soap. Furthermore, it implies that the goods will not hurt you, your children, or your pets. The vinegar solution has a mild, scarcely detectable odor that evaporates within a day and left no lingering odor.

A simple spray-on approach makes application straightforward, evenly saturating weeds and causing them to wither and die within 12-24 hours. Some grassy weeds may take longer than 24 hours to turn brown and die, but they will still die quickly.

If you have any leftover product, it will last for years on the shelf, saving you the trouble of throwing it out and spending money on more.


  • Natural and environmentally friendly
  • There is no chemical odour or toxicity.
  • Pets are welcome.
  • Results in a matter of hours


  • This product should not be used repeatedly.

Green Gobbler Vinegar Weed & Grass Killer

Green Goblin’s Vinegar Weed & Grass Killer is a highly effective and inexpensive dandelion weed killer that is guaranteed to get rid of weeds. The herbicidal agent is 20 percent acetic acid, and the mixture is created entirely of natural components with no trace of hazardous additives. It has been verified as safe for organic usage by the OMRI.

This handy dandelion killer is safe to use in residential, commercial, and industrial settings, and it can even remove weeds that grow in unattractive places. Driveways and parking lots, concrete, barns, and flower gardens are all examples. It should not be for use in edible gardening.

Green Gobbler is also quite simple to use. It has a simple spray application and doesn’t require any dilution, mixing, or other preparation. The substance is four times stronger than regular vinegar, making it an effective natural herbicide. Because the substance is so much stronger than regular vinegar, it begins to operate almost immediately; within 24 hours. You can get rid of Dandelion Infested lawn by using a green gobbler vinegar and weed and grass killer.


  • For organic use, OMRI certification is required.
  • This herbicide is present at affordable prices.
  • In 24 hours, it begins to kill dandelions. It is made with natural components and has no cancer-causing toxins.


  • If sprayed on other plants in the area, it is non-selective and can destroy them.

Compare-N-Save 2, 4-D Amine Broadleaf Weed Killer

It is the best dandelion killer that won’t kill the grass. There are numerous herbicides available that damage plants along with wit weeds. But this herbicide is special as it only kills dandelions and other harmful weeds only. It is applied in the springtime when dandelions and other weeds are small. After 30 days, apply it again to get better results. So, we recommend you do use it in the Dandelion Infested Lawn


All in all, this dandelions-elimination process is time-consuming, but it has a lot of appeal if you want to avoid using hazardous pesticides. Consider combining these actions into your daily lawn maintenance routine to keep dandelions under control and to deal with them on a lesser scale. You can permanently eliminate these troublemakers with a little diligence and patience. To prevent a Dandelion Infested lawn, you have to mow your lawn regularly and don’t mow it too short. Regular mowing will prevent dandelions from producing the clocks that disseminate their seeds. Not mowing your lawn too short will guarantee that there are no bare areas of ground where these seeds can establish themselves.

We hope you have found this article to be helpful. Do let us know if you still have any queries about fixing the Dandelion Infested lawn in the comment section down below.


Why is my lawn full of dandelions?

Dandelions thrive on low-nutrient, acidic soil. Although dandelions will grow in a variety of situations, they favor acidic soil, and changing the pH of acidic soil can help control their spread. When mowing a lawn that is prone to weeds, don’t bag the grass cuttings. Herbicides may be used to control a severe or chronic dandelion-causing Dandelion infested lawn.

What is a good dandelion killer for lawns?

A broadleaf herbicide will only destroy dandelions and other broadleaf weeds. A broadleaf herbicide is effective in killing dandelions in lawns because it kills the dandelions rather than the grass. A non-selective herbicide is another effective dandelion herbicide.

Does vinegar kill dandelion roots?

Dandelions cannot be killed with ordinary vinegar. The acetic acid content of household vinegar is only 5%. The easiest technique to control dandelions without using herbicides is to pull the dandelion when the soil is soft and damp, allowing you to remove as much of the taproot as possible.

Does vinegar kill dandelions permanently?

Vinegar isn’t strong enough to destroy dandelions that have deep roots and are well-established. The taproots of dandelions are about 8-16 inches long, and vinegar only burns the leaves. Young dandelions can be killed permanently by high doses of roughly 20% acetic acid.

Will spraying vinegar on grass kill it?

Spraying vinegar all over your lawn isn’t the best approach to keep weeds at bay. It may kill the weeds, but it’s equally likely to harm the grass. When you use a spray, there’s a greater chance of vinegar drifting. A few drops should not harm the grass, but more than that can cause the blades to burn and the weeds to grow.

Does roundup kill dandelions?

Yes, roundup can kill dandelion, other weeds, and even your lawn grass. So, be careful while applying this to your Dandelion Infested Lawn.

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I am a graduate in Agriculture Sciences and have been doing gardening for over 7 years. I am also a professional and certified Article & Blog Writer. I am happy to share my years of experience in gardening with all of you through my writings. In addition to this, I do extensive research on every topic to enrich readers with valuable knowledge.