The Japanese Knotweed Myths, Untruths & Misconceptions

Japanese Knotweed Myths, Misconceptions and Facts

There are many misconceptions regarding how one should control Japanese Knotweed and what is the best course of action to take. Pouring salt, diesel, caustic soda, turpentine, fairy liquid on the plant or into the ground are just some of the common fallacies which appear to have gathered momentum over the years, whilst others may be considered as a mixture of being quite innovative, yet some would say, rather ridiculous.

As a starting point, type Japanese Knotweed Services / Eradication / Removal accompanied by the name of any large UK city or region into google and take some time to check out some local contractors’ websites. While some contractors are undoubtedly very professional, ethical, and like ourselves, firm believers in informing customers what Japanese Knotweed can and cannot do, there are others who don’t share the same values. You may have noted the following assertions:

“It will grow through solid concrete”

“It can destabilise foundations”

“Has the potential to cause structural damage”

“Japanese Knotweed can damage buildings especially if left to grow unhindered for a number of years”

“This invasive plant can have such a dramatic effect on structures, foundations & concrete”

To make things clear and unequivocal, providing any groundwork/construction works have been completed correctly and to a high standard, it is almost impossible for Japanese Knotweed to grow through a slab of solid concrete, nor will it ‘destabilise solid foundation’s. Furthermore, there have been very few instances whereby the plant has had a dramatic ‘negative effect’ on a solid structure.

True or false?