That is why before I buy anything new I come home and google the botanical name + the word invasive and see if it's invasive.

Mine would be 'Chameleon plant' Houttuynia cordata. This is some horrible stuff:

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I saw several places selling 'Chameleon plant' Houttuynia cordata last year. (I did think it might work in a container mixed with other plants though.)

Chameleon plant works well in containers. If it gets enough sun, the leaves are very attractive.

Hi all
You have good medicinal plants. It is one of top ten plants Japanese health Department recognize as medicinal plants. we make herb tea,eat young rhizome, make wine, cosmetic lotion, treating baby's skin problems
treating light headache, atopy, high blood presure,helps to bowle movement etc.
You should look good side of the plants.
oops, I almost gorget.
One old Japanese man made wine out of houttuynia, he said his spring came back after drink the wine ^^.
The plant clear sinese very well.
If you are metro Atlanta area I would like to have the plants
yama

I've jokingly said before that if anyone is tempted to buy this they are welcome to come here and dig all of it they want. Truth is, I really don't want to contribute to the spread of this highly invasive plant in our area. Lowe's, Home Depot, Pike's, and many other places sell it if you feel you must have it. It might be fine in a pot if you're able to keep it from escaping, but then again, the stuff probably reseeds so you might want to think twice about doing that. In my yard it has spread throughout a very large area by underground runners. I have it coming up over 20 feet from where I originally planted it...The runners go deep and the roots break off easily so for me it's been impossible to try and control it by digging. Round-up and brush killer will not phase it either.

Vsjo, sorry for highjacking your thread! I looked up the Oenothera speciosa. A beautiful plant that I will make sure and keep out of my yard.

Hi wildflwer
I am sorry to hear your trouble.but I am going to get it anyway and grow. The plants cannot reseed.Normaly the plans can not produce seeds because of numbers of chromosme.
Try to understand mode of action of each herbicides,you should able to kill with Roundup pro. (premixed roundup won't work well)

We know it is hard to controle once it is spread, There for, we go to field to pick up to make herb tea.
Chameleon plants also grow in water.
yama

I have a wet slope for which I desperately want a thick groundcover that will crowd out weeds (especially chamberbitter) I've tried 'Chameleon plant' Houttuynia cordata, but guess what? It died!!! So this year I'm trying vinca, wish me luck.