I just bought a 1 gal Wisteria vine called Amethyst Falls from HD which claims to be non invasive and "won't take over my house like it's Asian cousins". It's mature height is 20 ft and blooms spring/summer. Did I get suckered? I want to plant it in a large pot and have it grow up and over an open iron window awning I have on the house. Good idea? Any feedback is appreciated!