We’ve been battling invasive Japanese knotweed at Henbogle since we arrived. Removal was complicated by another invasive, a multiflora rose, growing in the middle of the knotweed. We had tried cutting back the knotweed and treating it with RoundUp, which definitely slowed the plants down, but didn’t kill them. So we decided to try mowing.
Starting over yet again, in 2010 we decided we needed to kill off the multiflora rose. Not an easy task, it is very successful at colonizing and we could not get the all the tenacious roots out of the ground. We killed off the many plants as best we could and kept trimming back any new shoots. It finally seemed to die, and this week Dan was able to remove most of the remaining stumps/roots with a grub axe. While he was at it, he pulled large clumps of the knotweed roots, too, generating 2 huge truckloads of debris. We won’t be composting this!
He then raked and smoothed the soil, and we added grass seed, watered, and mulched with some aged straw hen bedding. He chopped the straw with the lawn mower and then we spread it over the seed and watered again.
I hope this will allow us to keep this area mowed, and will knock back the knotweed significantly. Between the root removal and frequent mowing I am hoping we can be rid of the evil stuff. We have to be vigilant in keeping it at bay, because it is so vigorous that the tiniest foothold id enough to keep it going. If we fail, the next step is to call a professional landscaper to spray it with something horrible. I’d greatly prefer to avoid this scenario, but we’ve been working on removal of the knotweed for 11 years. I’m getting tired.



































