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What does Japanese knotweed look like?

What does Japanese knotweed look like?
01/01/2021

Starting from small red shoots similar to asparagus in the spring and growing up to 3m tall in the summer with hollow canes and vibrant green heart/shield shaped leaves. This plant produces white flower clusters in autum before dying back for winter leaving a bare brassy footprint of dead hollow canes.

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Can Japanese knotweed really penetrate concrete?

Can Japanese knotweed really penetrate concrete?

Japanese knotweed can manipulate weaknesses and cracks in concrete and other building and drainage structures. If ignored, Japanese knotweed can under...

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Can Japanese knotweed spread by seed?

Can Japanese knotweed spread by seed?

No, As the Japanese knotweed in the UK is female only, the seeds produced are not viable and cannot cause spread. The Spread of Japanese knotweed nati...

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Can Japanese knotweed damage buildings?

Can Japanese knotweed damage buildings?

Japanese knotweed can grow up to 10cm per day, and because of this rapacious growth, it has been known to cause damage to building structures and subs...

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