Q&A for How to Get Rid of Dandelions in a Lawn

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Will the dandelions choke off your lawn if there are too many?

Community Answer

Yes, dandelions will take over entire sections of a lawn if the conditions are ideal for seeding and germination of the dandelion. It will spread rapidly, and within a few seasons you will see some sections of lawn exclusively covered in dandelions.

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When a yellow dandelion head is sprayed with Weed-B-Gone and the head later turns to seed, have the seeds been killed, too?

Community Answer

No, there is no herbicide that kills seeds. If the dandelion has gone to seed then the Weed-B-Gone application was not successful. A broad leaf herbicide is only effective on dandelions that are going through vegetative growth rather than under stress and in flower stage. It is absorbed through the leaves and broken down by the plant when in growth. Spraying during dormancy or seeding is far from ideal. Using a surfactant will help break through the wax coating on the leaves and give better results.

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Question

What do I do with the hole when the dandelion has been removed?

Community Answer

You can fill it with a little soil and if you have some, throw some grass seed on it.

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Do you have to dig out the entire dandelion root to kill it?

Community Answer

Yes, leaving the root behind increases the chances it will return. Dig it out and spray the ground with vinegar.

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Are dandelions sterile after they've been sprayed with this chemical?

Community Answer

If they are still alive, they will likely recover and reseed. The use of harsh solutions will sterilize the soil rather than the dandelion.

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Will using vinegar be dangerous to other nearby plants?

Community Answer

Yes, vinegar will kill any plant it comes in contact with. If using vinegar, the best option is to use a dropper to place the vinegar directly in the middle of the dandelion.

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Will vinegar kill my grass too?

Community Answer

Yes, it will kill weeds as well as dandelions and grass. It will prevent it from returning for a long time. Vinegar is great for cracks in the concrete where you don't want any growth.

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