Best Dandelion Killer. It is actually very hard to eliminate weeds like Dandelions completely. You have to get rid of the plant such as the root, and all or Dandelions can grow right back. Even if you have routinely taken care of your lawn, Dandelions will grow occasionally. It would be very difficult to kill Dandelions completely.
The best way to kill Dandelions is to remove the whole plant, taproot, and all by hand, but it would take time and effort to finish the job.
This would keep new Dandelions from establishing in your lawn. Eliminate Dandelions and feed your lawns at the same time could be a tough task to do.
What is Dandelion?
Dandelions are a broadleaf perennial. They can grow in any soil. They thrive well in full sunlight.
In the early spring months, new sprouts will show up from the taproot. The taproot can be 3 feet deep in the soil.
They produce yellow flowers that will turn into white puffballs. These puffballs contain seeds that spread out helped by the wind.
The plant seems like it has been disappearing in the fall. The taproot still survives in the soil. This taproot will start the life cycle again in the spring.
Why kill Dandelions?
Dandelions belong to the subset of weeds called broadleaf perennials. Broadleaf perennials are a challenge to remove.
When the Dandelion plant has fully mature, seeing its 10-inch-long taproot, the Dandelion will come back year after year. They will spread its spawn across the lawn in perpetuity.
The root is the key to total elimination. If you want to kill Dandelion, you must kill or remove the taproot. If you don’t, the unwanted sprout will come back again.
What is the best Dandelion killer?
If you have Dandelions growing in your St. Augustine, centipede, or Zoysia grass lawn, you can use a triple action herbicide that can control weeds and feed your lawn at the same time.
Dandelions are broadleaf weed. You need to buy a herbicide specially formulated to kill off broadleaf weeds. Mowing Dandelions can not kill them. Dandelions must kill at the root, not the stem.
You do not hand-pull Dandelions because, eventually, they will grow again. As mentioned before, to fully and completely remove Dandelions, you have to eliminate the taproot, which can be 2 to 3 feet (91.44 cm) deep.
If hand pulling Dandelions is a hard task for you, you can choose from below list of herbicide to get rid of Dandelions.
Best dandelion killer comparison table
Espoma Organic Weed Preventer-25 lb. CGP25, 25 lb.
Green it Environmental Factor RTS Corn Gluten Weed Preventer
Preen Garden Weed Preventer
Green Gobbler Vinegar Weed & Grass Killer
Doctor Kirchner Natural Weed Killer
Bayer Natria Lawn Weed Killer
Trimec Southern Broadleaf Weed Herbicide
Quali-Pro 2-D Herbicide
List of the best Dandelion killer
1. Espoma Organic Weed Preventer-25 lb. CGP25, 25 lb.
You can use this 25 pounds granulated product as an easy application for killing Dandelions. It is using organic ingredients (made from gluten meal) so that it is safe for pets and kids.
This dandelion killer works by interrupting root growth. You can apply this product in Spring and Fall (twice in one year). It also feeds the lawn for better green color and provides protein.
This can provide long-lasting slow-release Nitrogen for a greener and thicker lawn. With 25 pounds of granulated product, it can cover up to 1,250 square feet.
2. Green it Environmental Factor RTS Corn Gluten Weed Preventer, 64-Ounce Coverage 2000 square feet
The manufacturer of this product will guarantee to help you to kill clover and Dandelions. Not only that, it can kill many types of weed as well. The first thing to do is to water your lawn. The next thing is to spread the granules evenly across the lawn.
Give at least 24 hours for this product to work. Keep away kids and pets off your lawn within that time frame after application. It should be enough time when the lawn gets dry, to let kids and pets run around on once more.
You can stop weeds before they sprout with this weed preventer. Once it is applied, it works by releasing organic proteins (dipeptides) into the soil. After being released, it starts preventing weed seeds from developing. It contains liquid corn gluten to works on Dandelions, crabgrass, and clover. You do not have to mix anything. Using it is very easy and affordable.
3. Preen Garden Weed Preventer, 16 pounds Covers 2,560 square feet
This weed preventer product will let you prevent weed seeds from germinating. You just have to spread on bedding areas to start. Then, you must water in to block weeds for up to 90 days. It is fit to use in flower, Dandelions, shrub and all bedding areas. Before applying, you must remove existing weeds and grasses.
You can start applying anytime in spring, summer or fall. It will not kill the existing weed, but to prevent new weed from germinating and this feature is guaranteed by the manufacturer.
One application can cover 2,560 square feet. After applying this weed preventer, water in to release the weed preventer ingredient within 48 hours of application. Once applied, it bonds with soil particles creating a weed-control barrier. This will prevent weed seeds from forming roots. It will not build up in the leach into groundwater, soil, or wash away.
4. Green Gobbler Vinegar Weed & Grass Killer – 1 gallon
This product by Green Gobbler is an easy and fast way to kill weeds on your garden or lawn or yard. It contains corn and approved for organic use by OMRI. You do not have to worry about using glyphosate or other dangerous chemicals to eliminate annoying weeds once and for all. This product can kill all kinds of broadleaf weeds on contacts, such as Dandelions, crabgrass, white clover, musk thistle, oxalis, and more. Just simply spray it on targeted weeds by pushing the trigger sprayer which is included.
The 20% vinegar used by this product is four times stronger than table vinegar which only includes only 5%. You will see the result in less than 24 hours. It is a very powerful vinegar to kill the broadleaf weed. This vinegar product does not contain harmful chemicals including glyphosate, phosphates, sulfates, VOCs, petroleum solvents, chlorine, fluorine, ethoxylates, dye, or bleach.
For safe use, remove sprayer and drain all vinegar from the sprayer after each use. Clean sprayer with water. You will wash away the vinegar if you apply it during or before rainfall. Try to use on a calm wind and sunny day (commonly above 65°F) for the best results. To add the effectiveness, mix with the vinegar with a surfactant, like orange oil or dishwashing soap. You must avoid spraying on healthy desired plants and grass. Before use, it would be safe to shield trees or flower plant or shrub or perennials with cardboard.
5. Doctor Kirchner Natural Weed Killer (2.5 Gallon)
This weed killer can give a safe application without harmful herbicides to control weeds and still care for the environment and health that surround them. It works quickly and you do not have to do the mixing or purchasing safety gear. This means that you can spray weeds without any health concerns at all.
It is a pet and people-friendly ocean water and vinegar solution. It is also ready to spray. Most weeds will begin to die down in a matter of hours. while grassy weeds will die down in 12 to 24 hours. You can keep them safe for years without an expiration date. This product does not cause harm to the planet.
It works by killing weeds down to the roots and the good thing is that it is completely pesticide-free. You can use this product to kill Dandelions.
6. Bayer Natria Lawn Weed Killer 2 Pack Concentrate 10oz
This weed killer or herbicide is derived from iron effectively eliminates weeds. It is so effective and it works fast with results in hours.
It will not cause unpleasant odor because it is water-based formula. It is widely used to selectively eliminate broadleaf weeds growing in your lawns.
When you see the emergence of grass, you can apply this herbicide on new lawns and works in cool weather too.
7. Trimec Southern Broadleaf Weed Herbicide
This herbicide product is developed by PBI Gordon for controlling broadleaf weeds like Dandelions. This can provides control of many types of broadleaf weeds, such as clover chickweed, Dandelions, and spurge.
To use the herbicide product, you have to mix the product into a sprayer. It can be a hose-end, backpack, or hand-pump sprayer. You can easily operate with a hand-pump gallon sprayer for the best result.
This herbicide can be used on warm-season turfgrass live on recreational areas, commercial lawns, golf courses, residential, sports turf, and park. It can be used on Bluegrass, Fescues, Zoysiagrass, Bermudagrass, Bentgrass, St.Augustinegrass, Centipedegrass, and Seashore Paspalum.
8. Quali-Pro 2-D Herbicide, 1 gallon
This herbicide is manufactured for the control of perennial and annual broadleaf weeds. weeds that are located at rangeland, permanent grass pastures, sod farms, roadsides, CRP land, and other non-crop areas. The product contains 12.1% Clopyralid and 33% Triclopyr.
This herbicide product can is give maximum broadleaf weed control. The area that can be used including grass pastures, rangeland, non-residential turf areas, including sod farms, and other non-crop areas. You do not have to worry about the smell because is produce with a low-odor formula. So it would fit the commercial and public applications.
The ingredients can control over 35 weeds by killing the plant hormone, called auxin. You can just apply a one-time application that will provide control for up to the last 8 to 12 weeks. This means you do not have to repeat applications and treatments.
Types of Dandelion killer
This type of herbicide kills Dandelions but does not harm your other plants and keeps them remain healthy. A selective herbicide is a substance that will get rid of Dandelions without damaging or harming the other plants in your garden or yard that are wanted.
If you notice Dandelions popping up through the cracks in your patches or sidewalk in your driveway, you should choose a non-selective herbicide that will kill all or every plant it touches, including Dandelions.
How to remove Dandelions with herbicide?
You can pull Dandelion by hand if you want to remove it. If your pulling efforts do not seem to reduce the problem, use a broadleaf herbicide as a last resort.
Before applying herbicide to kill Dandelions, it is best to check the weather and wait for a sunny and dry. Get a broadleaf herbicide ready.
You must wear your gardening gloves, goggles, and protective clothing. Prepare a pump sprayer and add the chemical. Mix it with water and follow the instruction label on how to mix.
Using the pump sprayer, apply the herbicide specifically to the Dandelions plant in your garden. Let it dry out. Wait and notice in several days that the Dandelions’ foliage turns brown and dies.
When you see that they are dead, pull out or rake up the remains of the weeds. Wait three days after the application, and after that, you can reseed with grass seed.
You can do this practice in 1 hour, with only spending $20 on herbicide for application.
How to prevent Dandelions?
Keep lawn healthy is the best way to prevent Dandelion from growing. Do not rescue the grass lawn from weeds.
You have to manage your lawn properly actively. If your lawn is healthy, it can compete effectively against the Dandelions. This will remove any effort of Dandelion removal systematically.
You can do the leaving grass clippings on your lawn — the practice act as a mulch to block and stop weed seeds from germinating.
Mow lawn grass at the height of 2 to 3 inches (7.62 cm). This mowing practice will let the grass to protect itself by reducing weeds of the light they need.
Do not allow bare spots being uncovered for a long time. It will stimulate the invitation of opportunistic weeds. When the fall months come, fill in bare spots by overseeding the lawn.
How to Kill Dandelions
You can prevent from taking over your lawn and kill them using natural organic or chemical controls. Mostly, killing Dandelions by applying chemical controls are efficient and effective. Natural organic treatment is labor-intensive but more eco-friendly.
Dandelions will kill turfgrass that is thin and at stress level. To prevent Dandelions from taking over is by maintaining a dense and healthy lawn. This condition will make it hard for weeds to grow. The ideal time to kill dandelions is before they seed. Dandelions spread by seed.
The challenge of killing dandelions and preventing their return
Dandelions have a long taproot that allows them to live in the winter and grow in the spring. A small piece of the taproot has the ability to form a new plant.
New Dandelions plants spread and sprout from seed. It blooms bright yellow flowers and will form white puffballs full of seeds. These seeds will spread, taking advantage of the wind.
One flower alone can produce many seeds that will multiply around the lawn. Then the winds will carry them and spread them over many distances. After reaching one spot, the seed will germinate throughout the growing season.
When is the best time applying herbicide on Dandelions?
During the early fall, nutrients in the Dandelions plant are transferred from the leaves to the roots. This is the best time to apply herbicide.
This is because chemicals or organic control applied during this time will be absorbed by the leaves, and the chemical will be transferred onto the roots. The chemical will follow the same direction as the nutrients.
So, during late spring and early fall is the best time to use broadleaf herbicides to kill dandelions.
To ensure adequate herbicide absorption, stop mowing the lawn 2 or 3 days prior to application. After the application, wait for 2 or 3 days to pass before mowing.
This allows the herbicide to be transferred to the plant’s roots. To prevent the broadleaf herbicide from being washed off the plant’s leave, the application should not get rainfall within 24 hours. Stop watering the lawns within 24 hours after the application.
How these herbicide work
These post-emergence herbicides do its job on living weeds. They work when the weeds sprouted and are visible.
Organic post-emergence herbicide sometimes only works on a very young plant. But the post-emergence herbicide chemical sprays can control much older weeds. The organic product needs to repeat spraying several times and may fail. That could be disastrous.
Post-emergence products can stay in the soil longer than necessary. These can prevent the growth of other living plants. The herbicide will very slowly break down.
These products are rarely used. They are commonly used in an agricultural setting. The pre-plant herbicide must be put to practical use in a set time period prior to planting any desired plants or seeds. In most cases, the time period is between 14-45 days.
Once the pre-planting herbicidal is in practical use, the herbicide will eliminate the weeds. The application can prevent any seeds from sprouting. The application may cause harm to any transplants as well.
It is not recommended to use of pre-planting herbicides for home gardening purposes.
They are suitable for a large-scale field setting. It is where the field can be sprayed, plowed quickly, and let it be alone for the set period of time.
This pre-emergence herbicide has a job to prevent, block and stop seeds from germinating. Other jobs are sending up sprouts and seedling weeds.
If you see any existing weeds, they will not control them. Unfortunately, different areas have different weeds.
Pre-emergence herbicide leave residue in the soil after application. That would be bad for most home gardens.
Please read the labels carefully. Select the one for dandelion. There are pre-emergent sprays and granules out there for dandelions.
Will herbicide kill Dandelions?
The answer is yes. Herbicide work and kill dandelions. Some formulations only work on Dandelions. Some that kill everything around the Dandelions also.
Some herbicide works faster than others. Kill your dandelions while they are yellow. Kill them before they can form their seed. Do not the seed spread before you kill them.
Person: Henry Kaswandi, SS, M.Kom.
Contact Info: You can reach me by email. Hi, this is Henry Kaswandi, SS, M.Kom. I am a garden and outdoor activities lover. I try to write a comprehensive article for good information and guide.