I've got the P. incarnata 'Alba', and it comes up everywhere!!! But I don't really care, 'cuz it's so easy to pull up, and the Gulf Frits love it!
My only problem is that our city has decided that spraying for mosquitos is more important! My passi's are so robust right now! In the past they would have been totally devoured by the cats. Since the city is spraying so much more, I'm not seeing as many cats, the gulf frits are much smaller in size, and the P. incarnata is huge and healthy!
I'd really rather be seeing a vine that is totally decimated, and cats fat and healthy.