Sami ~ I planted a red and a yellow trumpet vine to grow over my shed 11 years ago. It is growing as I wanted, but it took
5 years before I saw the first bloom!!! I've heard that is common with these plants, so just sit tight and wait.
While it can be invasive, I have found a few spots in the garden where it pops up, but I can quickly take care of that by just pulling those stems out. It really hasn't been as bad as I have read about it - especially recently, not only here, but other sites as well...
BEST PART ~ the hummers love it!!!