How to Kill Thistles Permanently UK with Weed Killer or By Hand

Get Rid Of Creeping Thistle

Eliminate Thistles Easily & Effortlessly

How To Kill Thistles Permanently

A garden can be an oasis of tranquillity and beauty, the perfect escape from the hustle and bustle of everyday life. But what happens when uninvited guests crash your party? If you're dealing with Thistles, you may be wondering how to permanently get rid of them. 

Thistles are a common weed that can grow in a variety of climates and soils. They prefer warm climates, and can thrive in both dry and moist soils.

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They often spread quickly and can take over a garden in no time. It's important to get rid of them as soon as possible, as they are known to choke out other plants and take over entire gardens.

How to Identify Thistles

Thistles are easily identifiable, with their bright green leaves and purple flowers. They grow in a rosette-like shape, and have sharp spines on the leaves which can cause a nasty sting if you're not careful.

They can grow up to a metre in height and spread out to around a metre in width. 

Why do Thistles grow in my garden?

Thistles are a common nuisance for many gardeners.

These pesky weeds can be difficult to get rid of, but understanding why they grow in your garden is the first step to preventing them in the future. 

Thistles thrive in soil that is poor in nutrients, so it could be that your soil is lacking the necessary nutrients for other plants to grow in.

Another possible reason could be that they are spreading from a nearby source. If you have any neighbours or nearby gardens that have Thistles, they could easily spread to your garden through wind or animals, such as birds. 

Fortunately, there are ways to prevent Thistles from growing in your garden in the future. Regularly fertilizing your soil with organic matter will help to provide the necessary nutrients for other plants to grow.

Additionally, make sure to keep your grass and other plants trimmed to prevent them from providing ideal conditions for Thistles.

Finally, if you have a neighbour with Thistles, you can consider erecting a barrier between your gardens to prevent the spread of these weeds.

How can I kill them naturally?

There are a few natural ways to kill Thistles. The first is to simply pull them out! Though this may seem tedious, it is an effective way to get rid of the thistles without using chemicals.

It is important to make sure to remove the entire root system, as any small pieces left in the ground can result in new thistles sprouting up. 

Another option is to use a weed torch. These torches get hot enough to kill the thistles and other weeds without the use of harmful chemicals. To make sure the thistles are killed, make sure the weed torch is around 600 degrees F.

Before using a weed torch, make sure to check with local regulations as some areas may have restrictions on using them.

You can also try some natural weed killers to help with the process, such as vinegar or boiling water although the effectiveness will vary depending on how well they are established.

A final option for killing Thistles is to cover them with a thick layer of organic mulch. This will smother the thistles and prevent them from getting the light they need to survive.

This method can be used on other weeds as well and is a great way to prevent weeds from growing in the first place. 

Whichever method you choose, it is important to be consistent in your efforts.

Removing thistles as soon as they appear can help prevent them from spreading and make sure they don't become a bigger problem down the line.

How do I kill Thistles with weed killer?

Killing Thistles with weed killer is a great way to get rid of them.

The best type of weed killer to use is glyphosate, as it is a non-selective, systemic herbicide, meaning it will kill all types of weeds.

Before you start killing, it is important to make sure you are treating the thistle correctly.

First, you should determine how extensive the infestation is. If it is a large area, you may need to spray the entire area. If you are dealing with just a few plants, you can spot-treat them.

Once you have determined how you want to treat the thistle, you should dilute your glyphosate according to the instructions.

It is important to wear protective clothing and a mask when using glyphosate, as it is toxic. You should also use a pump sprayer or a garden sprayer when applying the weed killer.

Once you have sprayed the thistle, you should wait a few weeks before you see results. If the thistle has not died after a few weeks, you may need to reapply the glyphosate to get rid of it.

If the Thistles are growing in your lawn you may want to use a lawn weed killer as Glyphosate will kill your grass - it is possibly to spot treat them but you may need a fast growing seed if you accidentally get any Glyphosate on your lawn - bare spots attract weeds!

How do I manually remove Thistles?

Manually removing Thistles from your garden can be a tedious task but is necessary to keep them from taking over your garden.

The first step is to physically pull up the thistles by hand. It is important to pull up the entire root system, as even small parts of the root can regrow the plant. If the thistles are too difficult to pull up, you may need to dig them up with a shovel.

Make sure to pull up as much of the root system as possible.

Once the thistles have been removed, it is important to take preventative measures to prevent them from returning.

Regularly check your garden for any new thistles and pull them up immediately.

You can also cover the ground with a thick layer of mulch or gravel to discourage the thistles from growing. If the thistles return, they can be sprayed with a herbicide specifically designed to kill the plant. Make sure to always read and follow the directions on the label before using any herbicide.

How can I prevent Thistles from growing?

Preventing Thistles from growing in your garden is an important step in keeping your garden looking its best.

There are a few simple steps you can take to help you keep this pesky weed from taking over:

The first thing you should do is make sure there are no thistle seeds in your garden. If you’ve been dealing with thistles in your garden for some time, rake up any dead thistle plants and remove them from the area.

This will prevent any seeds from the old plants from sprouting in the future.

Additionally, you should also check around your garden for any thistle plants that may have drifted in from a nearby area and remove them as well.

The next step is to keep your garden well-maintained. Thistles prefer areas with lots of sunlight and fertile soil, so make sure you’re regularly weeding, fertilising, and watering your garden.

Additionally, mowing your lawn regularly can help prevent thistles from growing as it removes their flower heads and prevents them from setting seed.

Finally, you can also use herbicides or organic weed control methods to prevent thistles from growing in the first place. You can use pre-emergent weed killers to stop thistle seeds from germinating and post-emergent weed killers to kill any existing thistle plants.

Alternatively, you can try hand-pulling thistles or even covering the area with a thick layer of mulch to prevent them from sprouting.

By following these steps, you can help keep Thistles from taking over your garden and keep it looking its best.


About the Author

Hey there, I am founder and editor in chief here at Good Grow. I guess I've always known I was going to be a gardener. I'm on a mission to share my UK based weed control & lawn care tips with you all. If you have any queries please post in the comments below.