Japanese knotweed has a reputation for rapid growth, but this invasive plant's growth rate does peak and trough over the course of a year.
The growing cycle can vary somewhat depending on what the weather's doing, but there is a reasonably consistent annual pattern. Here's a rough timeline of Japanese knotweed's growing behaviour from one season to the next.
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For reasons discussed in our DIY Japanese Knotweed Removal blog post, we DO NOT RECOMMEND attempting to get rid of Japanese knotweed on your own. Instead, get in touch with a specialist contractor who knows how to deal with this invasive species and ensure that it does not spread elsewhere.
Photo by dankogreen (Flickr)
If you're found your way to this blog, you're likely wondering how to kill Japanese knotweed. Broadly speaking, there are two ways to kill Japanese knotweed:
- Herbicides - spraying the plant with glyphosate weed killer
- Excavation - digging the plant up and either burying it or safely disposing of it at an approved landfill site
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Is It Japanese Knotweed?