Seven years ago we bought a charming bungalow built in 1900 and with it, unfortunately, a huge swarth of Japanese Knotweed. You can see how large in the photo above.
Knotweed, Reynoutria japonica, is an invasive and fast-growing weed from Asia that looks a little like bamboo but it ain’t. It grows quite tall and flowers, as we discovered the first year we lived here. It also doesn’t let much of anything else grow with it as its strong root system spreads horizontally. Thus, it can be destructive to building foundations. A little history: it was brought to the U.K. in the early 1800s before it came to the U.S.
I see knotweed growing along roads, rivers, well, lots of places. All the plant needs is a bit of disturbed soil and it takes root and spreads. That’s likely what happened when previous owners built an addition and garage in 1990, and just let the weed take over. Ugh. Thanks a lot.
Yes, I know beekeepers use the plant — my neighbor presented me with a bottle of knotweed honey as an amusing gift. The young stems allegedly taste like rhubarb. The same neighbor told me about a person who created flutes from the large dried stalks. I prefer to use the land for other purposes.
As I’m the person in our household that takes care of the land, I researched how to get rid of the damn stuff. So what are my options?
Learn to live with it. But, alas, knotweed is a greedy plant that wants to take over the world.
Herbicide? No thanks.
Cover with a tarp for five years? I tried that last year and gave up as the damn plants started spreading horizontally to escape. Besides, I don’t want to look at tarps on the ground that long.
Dig it up? Impossible to get every damn piece — knotweed doesn’t need much to grow — and besides where would I take the roots so they are not somebody else’s problem?
So, I am left with cutting the damn stuff. I figure if I keep doing it, knotweed will just give up. Or maybe I will.
I use an electric-powered weed whacker, a Stihl I’ve owned for many years that takes two electric cords, to cut the damn stuff down. (The cords are impractical but it’s what I have. We bought it when we lived in New Mexico and had different weeds to keep in control.)
I began earlier this spring when the plants were about a foot tall. I wait about two weeks before the next cutting, which I accomplish in two days. In the photo above you can see my first day’s progress during this week’s cutting. I leave the ferns intact, and hope they will take over along with the grass seed I spread this spring. By the way, the lawn area is owned and maintained by the Catholic Church next door.
Even this blasted heat and humidity hasn’t stopped me. I dress appropriately, wear sunscreen, gloves, and a big hat, and get to work with my trusty machine. It’s a bit of a workout since the area is on a large hill, steeper near the house. Yesterday, I was soaking wet when I happily finished.
Unfortunately, the weed whacker is too noisy to listen to an audiobook. I tried. But I do a lot of thinking, some of it personal, most of it involves my writing. I believe I finally know who dunnit in the Isabel Long Mystery I am getting close to finishing. Throughout this series — Finding the Source is number eight — I solve the mystery along with my protagonist.
And now, hopefully I will also solve the mystery about knotweed.