Hi, I have a plant that has been growing in my back yard for many years. I have tried numerous things to erdicate this but each year it comes back. Here is what I can tell you It is growing in Northern BC - Coast town - so very mild climate I looks like a bamboo type plant It grows to about 6 - 10 feet tall It dies off each fall and comes back each spring The stalks on the older plants grow to about 1 to 2 inches in diameter It does not trailer ( thankfully) but if pulled up from where it is planted and "dropped" in another location will root and grow very easily ( learned this the hard way) I have tried pulling the roots but they seem to go forever and "break" very eaisly. I have tried "round-up" but to no avail One lady told me to put pickling salt down the stalks when you break them off - that is a slow boat to china.... The area they grow in is very damp soil and is only watered by the natural rain- of which we get far too much When they "die" in the fall the stalks become hard ( like dried sticks) but you can snap them very easily - the stalks don't become soggy or "wimpy" Any help would be appreciated..... thanks
japanese knotweed Japanese knotweed or Mexican Bamboo. I had the same plant in my yard and I have tried everything, round up, hotwater, salt, black plastic. The only things that has worked for me is to dig it up, about 2 feet down and try to take out as many if not all the rhizomes you can. That was 4 years ago and I am still pulling it up.The original plant was about 5 feet by 5 feet and now I just get about dozen shoots that I pull up by hand. If I don't stay ontop I am sure it will grow back. They say if there are rhizomes present in the soil, no matter how small the plant will re-establish itself.. The problem is it has established itself in the neighbours yard and the roots creep under the fence to the heavily composted dirt on my side. Just another garden battle -can you live with it and landscape around it? Cutting it down heavily does reduce the overall size.
