I think passion flowers are pretty, but the reason I planted my P. incarnata was for the Variegated Fritillaries. We don't get Gulf Fritillaries up here and I have never gotten any VFs on my passionvines in the several years that I've had it here. I know that they'll also lay their eggs on violets, and now I'm asking myself why I have this vine here. At first it fooled me into thinking it wouldn't get invasive this far north, growing little the first year and growing nicely the next year, but now is starting to get a little out of control this year. As I already mentioned in another post, I'm already battling this #@*& Canada thistle that so far has been winning, and now to have to deal with another invasive is almost more than I can really take. I'm having new plants popping up at least 10 feet from the original spot and various places in between. So far I've been digging them out, but I have so many weeds now that I can't keep up and this is one other thing.
So...if I spray weed killer in the grass (I hate to spray but I also don't want this spreading any further), will that stop it from going any further into the lawn and possibly even beyond that? It's kind of hard to go digging up the lawn to get pieces of P. incarnata out of it, so I thought weed killer would probably be the way to stop it from taking over the lawn. I know that mowing will keep it cut down, but will it still continue further on its merry way? I'm thinking that maybe even in the garden, weed killer might be my best option to get rid of it before it wants to take over every section there is. It's fairly close to where I have other garden plants. Yes, it's pretty, but I've pretty much decided to get rid of it now. I'm just afraid that if I continue to let it be here that it will just keep spreading further and further out and I'll have this enormous root system sending up shoots all over the place. Since I've come to realize just recently that I have to downsize to save on time (and my sanity), it wouldn't make sense to keep a plant like this. I'll admit that I got too enthusiastic when I started learning about all of these host plants and put out more than I can handle. Things changed over the past few years and I really must downsize (just saying so nobody will try to talk me into keeping it, thank you). Could someone please tell me if it's feasible to get rid of it for good and if so how? The only option I can see is to get rid of it entirely. I don't even think I want to lug it in and out of the house every fall and spring in a pot (I imagine it would have to be fairly big, like at least a foot in diameter) if that's the only way to have it without it going all over the place.