How To Kill Thistle Weeds

(Last Updated On: June 20, 2022)

To kill thistle weeds, you’ll need to use a chemical herbicide. You can either spot-treat the weeds or treat your entire lawn. If you spot-treat, be sure to apply the herbicide directly to the leaves of the weeds.

For best results, treat your lawn in the spring or early summer when the weeds are actively growing.

  • To kill thistle weeds, first identify the weeds in your garden
  • Thistle weeds have long, thin leaves with prickly edges
  • They can range in color from green to purple
  • Once you’ve identified the weeds, dig up the roots and discard them
  • You can also spray the weeds with an herbicide, but be sure to follow the directions on the label


How do I permanently get rid of thistles?

Thistles are a common weed in gardens and yards. While they are pretty to look at, they can be a pain to get rid of. If you have thistles in your garden, there are a few things you can do to get rid of them permanently.

The first step is to identify the thistles in your garden. There are many different types of thistles, so it’s important to know which ones you’re dealing with. Once you’ve identified the thistles, you can start to treat them.

One way to get rid of thistles is to pull them out by the root. This can be a difficult and time-consuming task, but it’s the best way to make sure they don’t come back.

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Another way to get rid of thistles is to use herbicides.

There are many different types of herbicides available, so be sure to read the label carefully to find one that’s safe for use around children and pets. Once you’ve treated the thistles in your garden, it’s important to take measures to prevent them from coming back.

How do you kill thistle weeds naturally?

If you’re looking to get rid of thistle weeds naturally, there are a few things you can do. First, you can try pulling them up by hand. This is often the most effective method, especially if the thistle problem is small.

If the area is too large to pull them all up by hand, you can also try using a hoe or other gardening tool to dig them up. Another natural method of killing thistle weeds is to smother them. You can do this by laying down a thick layer of mulch, cardboard, or even newspaper.

This will prevent the thistles from getting the sunlight they need to grow. If you have a larger thistle problem, you may need to resort to using herbicides. There are some organic herbicides available, but these can be expensive.

You can also make your own herbicide by mixing vinegar, salt, and dish soap. This homemade herbicide will need to be reapplied every few days, but it will eventually kill the thistle weeds.

What will kill thistles but not grass?

There are a few things that will kill thistles but not grass. One is glyphosate, which is a herbicide that is often used to kill weeds. However, it is important to read the label carefully and follow the instructions, because glyphosate can also kill grass if it is not used properly.

Another option is to use a weed trimmer to cut the thistles down. This will not kill the thistles, but it will make them shorter and less noticeable.

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How do I get rid of thistle weeds?

Thistle weeds are a common problem in gardens and yards. There are a few different ways to get rid of them, but the most effective method depends on the type of thistle weed you have. Common thistle weeds include bull thistle, Canada thistle, and musk thistle.

Each type of thistle weed has different characteristics, so it’s important to identify the type of thistle weed you have before trying to remove it. Bull thistle is a tall weed with spines on the leaves and stem. Canada thistle is a low-growing weed with spiny leaves.

Musk thistle has purple flowers and spiny leaves. The best way to remove bull thistle is to pull it up by the roots. Canada thistle and musk thistle are more difficult to remove because they have deep roots.

The best way to remove these types of thistle weeds is to use a weed killer that contains glyphosate. To prevent thistle weeds from coming back, it’s important to keep your garden and yard free of debris and weeds. Mowing the lawn regularly will also help to prevent thistle weeds from taking over.

how to kill thistle weeds


Does roundup kill thistle

Roundup is a popular herbicide that is often used to kill thistle. While Roundup is effective at killing thistle, it is important to be aware of some of the potential risks associated with using this herbicide. Roundup can be harmful to humans and animals if ingested.

It is also important to be careful when using Roundup near waterways, as it can contaminate the water and harm aquatic life.

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If you are considering using Roundup to kill thistle, be sure to read the label carefully and follow the directions. You can also talk to your local extension office for more information about using herbicides safely and effectively.


To kill thistle weeds, first identify the weed. Thistle weeds have long, sharp leaves and can grow up to four feet tall. If the weed is small, pull it up by the root.

If the weed is large, cut it down with a weed whacker or lawn mower. Next, apply a herbicide to the weed. Be sure to read the herbicide label and follow the directions.

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