Wisteria - HELP NEEDED

Ryan180680

Overnight my wisteria seems to be wilting. Its watered generously and never had this issue before. Any ideas? 

yorkshirerose

I wonder if the roots are restricted? When was it planted and what was the depth of soil into which you planted it? 
The bricks showing in your photo look new. I hope you don't have a problem with 'builder's rubble' below the soil surface. If so this would restrict the amount of room for plant roots, and Wisteria, being a very big plant, requires a good depth of soil.