Snap peas, green beans and sunflowers are fast growers and provide food but they need to be replanted every year.
I HATE trumpet vines. We bought our house last winter and the pervious owners planted them at the foundation and we've been battling them for over a year now. They won't die, kill the other plants, grow under the siding and are causing issues with the old rock and mortar foundation. Can't dig them out because the roots go on forever. I plan on transplanting everything else, digging out as much as I can,pouring boiling water on it, treating with roundup, making the soil acidic with vinegar, then covering it with plastic for at least a year. That covers every way to eliminate it that I have read, hopefully it works lol.