:)

You are correct, and this is one of the few plants that I recommend chemical treatments. Glyphosate has to be injected at just the right time in order to work. But for myself, I'm an organic gardener and my company uses organic practices. I also have pets and a young child at home so I will not use chemicals in my yard. I also plan on using this space for growing food so that's triple no to chemical solutions. I hope this video shows hope to some that it is possible to beat this plant using organic practices. But I wouldn't even try it if the patch was much bigger than this was. There are some cases when chemicals are the best option.

So far I have had Knotweed return, but only near the fences - it's coming back in from the neighbor's sides. The area where the box was buried has not had anything return yet, but that box was 6' deep so it might come back later. The roots can lay dormant but still viable for several years so time will tell.

@@GardenUPLandscape I wonder if burying sheets of metal roofing along your fence would help deter, or at least contain the growth a bit. Keep up the good fight, it builds muscles.

Good plan! Keep an eye on the edges of the vinyl though, I have a feeling the roots will find their way to the edge at some point.

@@GardenUPLandscape some survive at the edges, or at any unguarded seams, but they are mostly dead within two years.

So you didn’t dig deep like they did in the video? I’ve started digging but not that deep I’m going to try your method I hope it works🤞🤞

@@Juicy_dynamite digging is frustration. If a tiny piece gets left, it will grow. Smothering is the way, but iy needs to be strong and seamless to work

Yes, we did get rid of it. We were very careful to dig out the complete roots - no easy feat! One neighbor still has it behind their garage, so we'll be fighting it from that side for years :( But I am carefully planting in the area finally!

Good luck! It's a war to be sure, but if you are more tenacious than the weed you will win eventually!

LOL, yeah... I found a few new shoots this spring. Most of the ones that I've dug up so far were from little chunks of root that we must've missed. One was coming up from the neighbor's side so I dug it to just past the fence line and pulled as much as I could of that one. There are still a few shoots coming up from the other neighbor. It's behind their garage and I doubt they even know it's there. So I'm going to be digging a bit to get those out. For the most part though, we seem to be ahead of it!

I agree with your sentiment, but honestly after doing this I wouldn't wish it on anyone. The only reason I was able to accomplish this task is because I had so much help from my employees during trainings.

Lol, yeah we figured it was something like that! Thanks for watching! If you haven't subscribed to our channel yet please do! We'd love to have you join us!

OMG that is terrible! I had enough trouble with this little corner! 5 acres 😬

I had a similar issue over an acre. I managed to get rid of it by spraying Roundup in August as this is when the plant starts to take the nutrients back to the root for winter. This then kills the roots and rhizome. It came back a small bit the following year, and after doing the same again it hasn't resurfaced. Hope this helps.

To tackle a huge patch like you have, (first make a few trails on the inside and also blaze a trail around the perimeter), start inside the clump and spray all the stems, then start at the back and work your way out spraying the undersides of the leaves. Next, go around the perimeter of the patch, carefully spraying all the leaves around the outer edge. Lastly, open your nozzle to full stream and spray over the top of the patch from all sides. Take heart, next year the knotweed will be stunted and easier to spray. 1)The ultimate date for spraying Knotweed is on or around September 15, after the bees are done pollinating. 2) Use 2 ounces Glyphosate and one ounce of a sticker per gallon. 3) Tighten your nozzle to just more than a mist (depending on distance away from the plant) and cover every inch of each plant, first the stem, then leaves and undersides of leaves too if at all possible. 4) The silver bullet to eradicating knotweed is this... when you are done thoroughly spraying... wait for the herbicide to be totally absorbed/dry and spray it all over again one more time! (2nd spray could be done the next day.) After only having 10 percent eradication of the knotweed clumps I treated year after year (for 10 years)... I finally used the double spray in one day technique and found 90% eradication the following season!

LOL! It wouldn't surprise me if he had a few things buried over there.

That sounds like a nightmare! I'm so sorry you are dealing with that. I wish I could offer better advice, but with this plant there just isn't much that can be done - it's either carefully timed chemical injections (not sprays, they wont work), digging forever, or solarizing/smothering, all of which are hit or miss with their results. I'm still pulling up shoots that creep in from the neighbor's sides.

Yeah pretty much

Lol yeah, that might have done it. Not sure though. It might have still won...

My deepest sympathies. :'(

From what I've researched, herbicides are not always a reliable way to control Japanese Knotweed. You have to treat at exactly the right time and even then it might not work. In my case, I have a kid and pets so I don't use chemicals in my yard.

Sending my sympathy your way 😢 I managed to dig mine as you saw in the video, but it was an intense process that took years and dug up a huge chunk of my lawn. Digging tends to spread the roots, so if it wasn't under your lawn before you dug, it might be headed that way now. This is one of the few plants that I wholeheartedly support the use of glyphosate on.

Thanks for the tips! I learned after I had finally eradicated it that it was edible and possibly medicinal.

​@@GardenUPLandscape Any regrowth?

@@voxdomesticus Very little! There is one piece that keeps coming up right next to a fence post. My guess is it has a piece of root in the concrete that I can't get out, so I just keep digging what I can each time I see it, which now is less than once a year! There are a couple other shoots that still creep over from the neighbors side of the fence, and I'm actually thinking I'll coordinate a glyphosate plan with them starting this fall. The roots go under their garage, so even if they wanted to dig they wouldn't be able to.

It does have medicinal and edible properties, but in my opinion it isn't worth loosing your property value over. This plant can actually destroy your house, heave your concrete, take over your entire yard or property and displace native plants and wildlife. It's on noxious weed lists in every county and country except it's native home of Japan. If you want to keep some then put it in a big pot on your patio and for the love of goodness don't let it go to seed!