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Japanese knotweed roots

Japanese knotweed has a durable rhizome root system that can be very difficult to completely eradicate.

Rhizomes - sometimes known as creeping rootstalks - are like plant stems that run horizontally through the soil. Roots and shoots grow out of the rhizome's nodes to seek nourishment as the plant grows.

Let's answer some common questions about Japanese knotweed and its root system.

How deep do Japanese knotweed roots go?

Japanese knotweed roots can burrow more than 2 metres down into the ground.

What do Japanese knotweed roots look like?

The rhizome roots are brown on the outside, but if you cut one open you'll discover that it's more of an orange colour on the inside. If you'd like to learn more about how you can successfully identify Japanese knotweed rhizomes, check out our Japanese knotweed identification page. 

What’s the difference between roots and rhizomes?

While the terms ‘root’ and ‘rhizome’ are frequently used interchangeably, they’re actually two very different things! The most notable difference between rhizomes and roots is that rhizomes have nodes, which allow for asexual reproduction by vegetative propagation. Knotweed roots grow out of the rhizome nodes up to the stems that form the plant. Over many years of growth, these rhizomes can form large dense crowns.

Can Japanese knotweed grow back?

Yes. This is one of the most frustrating things about Japanese knotweed's rhizome root system: due to their asexual reproduction properties if even a tiny fragment of rhizome is left in the soil, it can grow into a whole new knotweed plant. That's why you have to be extremely careful when removing Japanese knotweed.

Don't take any risks with your Japanese knotweed problem - leave it to the professionals! Call Taylor Total Weed Control on 029 2039 7554 to arrange a FREE Japanese knotweed survey - we've been clearing this invasive species for many years, so you can rely on us to do a thorough job and adhere to all applicable regulations.

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