Not Blooming Yet Mid June
We have two separate wisterias planted at the bases of our pergola. For the past 5 years, they have bloomed together. This year only one has bloomed and turned green. The other (almost the exact location) is still just a vine.
Certified GKH Gardening Expert
This article should help: https://www.gardeningknowhow.com/ornamental/vines/wisteria/wisteria-blooming-problems.htm