u/aitchsaka

23 days ago I posted (https://www.reddit.com/r/invasivespecies/s/olDOpmCKDj) about discovering a Japanese knotweed patch in our new garden, when the first shoots started poking through. Since then, I’ve read up, bought my glysophate and prepared myself for the “*window*” during which time we will go to war.

But in 23 days, this stuff has grown enormous. It’s now well over 3m tall and shows no signs of slowing up. I’m now worried that we won’t be able to get high enough to cover all the foliage.

1. At what fucking stage does this stuff stop growing upwards?
2. Is there anything that can be done in the meantime to stunt the growth.

Many thanks.