Does anyone know how to get a wisteria vine to bloom?

I have a wisteria vine that I have grown from a start I bought at Lowes. I have had it for about 7 years, and it has never flowered. What do I need to do to make it flower? Thanks to all who help.

Does anyone know how to get a wisteria vine to bloom?
Here in the south wisteria vines are difficult to get rid of. Once planted they spread like crazy. They prefer to climb to flower and usually bloom 2 times a year. Try putting one or more on a trellis to get it to bloom. I have never fertilized mine. The blooms are white or purple, depending upon the plant you bought. Purple being the most coomon. If you plant the seeds from them it will take 2 years to bloom. The plants you buy or dig up should bloom the first year. If you plant them near a tree they can actually choke the tree to death. You can prune them and they can make a nice looking specimen-the way i prefer. But keep your clippers sharp or they will hit the ground and run like wild fire.
Reply:please, don't ask for trouble. i have one and u cant get rid of it. it Will take over your entire yard with vines that u can not break. i have even tied it to the back of a truck to pull it out of the ground and it still comes back. it has killed one tree and is working on another.i try to keep it cut back but u cant kill the little devil . Ive even put a root killer on it but it didn't work