Invasive non-native problem plants

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11
votes
6answers
3k views

How to get rid of Japanese knotweed (hogweed?)

I have Japanese knotweed growing into my garden from an adjoining neighbour's garden. Does anyone please have any advice of how to get rid of this awful plant? I'm in the UK.
10
votes
2answers
579 views

How to deal with invasive Ailanthus (Tree of Heaven)

My neighbors have a great tall Ailanthus (Tree of Heaven). Apparently, before I moved into my house, so did our yard. We now have an enormous stump and a bazillion new shoots that come up from ...
9
votes
3answers
3k views

How can I get rid of mint?

I planted mint in my garden a few years ago and it turned out to be a mistake. I should have grown it in a container. I've been pulling out mint each year but can't get rid of it, so I dug up the ...
9
votes
1answer
480 views

What is this plant found in the UK with green and white leaves with purple flowers?

Any ideas what this plant is and how to control it?
8
votes
1answer
887 views

How do I get rid of houttuynia (heartleaf/lizard tail)?

A previous owner left me with a garden full of Houttuynia cordata (also called hearleaf/lizard tail/chameleon plant), an invasive weed that I've been trying to eradicate. I can't believe it is sold ...
2
votes
2answers
98 views

How do I eradicate Mint

I have tried googling with no real answers without destroying the soil. I searched this forum and found this posting answered, but the answer suggests to mow the mint which is not an option for me. I ...