Shall I dig up and pot again?
Why Has My Wisteria Tree Not Bloomed? I Moved From Pot to Ground 9 Years Ago?
Certified GKH Gardening Expert
These can take up to 15 years to set bloom! It may be that it is just not ready yet. I fear that digging it up again will only stress it, which will prolong flowering even more. Here is an article that will give you information on the subject: https://www.gardeningknowhow.com/ornamental/vines/wisteria/wisteria-blooming-problems.htm