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I didn’t know wood chip did that, but there’s a lot a don’t know when it comes to gardening 🧑‍🌾 I lived at one place which was infested with knot weeds! OMG it drove me crazy. Still, there’s not much that beats a good looking garden after some hard work.

knotweed is a hard weed mate, I have mares tale down the allotment and that nearly ruined me, I ended up spraying it with white vinegar to try and keep it at bay, but it still kept coming.

A flamethrower might be a good idea