Be very careful. I bought a 'Madam Galan' Trumpet vine which was supposed to be "less invasive." It went totally crazy in our sandy soil and all efforts to completely eliminate it have been unsuccessful. That said, the only way I could see containing an "invasive" trumpet vine, even if it were in a pot, would be if the pot was placed on concrete. The plant's roots will grow out of the holes in the bottom of the pot and will escape and send runners all over your yard if you plant it near soil. Googled Balboa Sunset Trumpet vine and can see why you are tempted. Blooms on my vine were orange but the Balboa looms appear a lovely red.

"Be afraid, very afraid"...kind of a Halloween vine. It will choke you, your yard, and your little dog too...

Here is a link that might be useful: Trumpet vine conversation

I don't think you have much to worry about when it comes to the invasiveness of plants here in Las Vegas. We have less than ideal growing conditions compared to areas of the country with fertile soil and abundant natural rainfall. I too have tried growing Madame Galen Trumpet Vine and it does make it through the heat with adequate moisture. It does have beautiful tropical like flowers through early summer. I've found hardy aggressive varieties are sometimes the best choice for challenging landscape areas where nothing more than an a desert spoon may survive. If you have any questions, I'm happy to share my experience with killing plants in the desert:) The desert can turn a green thumb brown rather quickly...growing plants can be done though!!! P.S. another favorite of mine is cape honeysuckle.

Hi, I live in the high desert area of southwest Idaho and purchased the Balboa Sunset trumpet vine in 2007. I have had no suckers and I remove the seed pods after it flowers so that it won't get into the farm fields. It's a really beautiful plant and has bloomed since the first year.