Loosestrife I have in my garden, but it seems to have a little brown bug that chews away on its new growth, so it doesn’t ever get to the flowering stage. As long as I am fairly vigilant with the roots, I can keep it at bay.
The other plant that spreads by roots that I do have an issue with is horsetail. It never gets very large, or overpowering, but it is everywhere, and there is not a herbicide that will touch it (not even Roundup).
One other annoying weed that seems to have gotten a foothold everywhere is goose footed lambs quarter (well at least I think that is what it is called - I've google searched, but nothing seems definitive) The problem with it is that it seems to be able to reseed within a couple of weeks of germination, and it is prolific in its reproduction.
|Wild Carrot/Queen Anne's Lace (everywhere, but kind of pretty)|
|Pampa grass - not a problem in my garden, but I see it invading a lot of wetlands about. Those stalks are up to 10 feet tall.|
Musings and meanderings from the Musical Gardener.