Q.wisteria hasn’t bloomed
I purchased a wisteria plant from a local garden center approximately 3 to 4 years ago. It still has not bloomed yet. I have had a lot of growth. Is there anything I can do to get this plant to bloom? It has grown tremendously but no flowers.
I would guess that the nitrogen to phosphorus ratio is off. The soil may have an abundance of nitrogen, which would result in nice, healthy green growth but little to no blooms. Without the right amount of phosphorus, it will not bloom well. Bone meal is a great way to add phosphorus. This article will also help:
https://www.gardeningknowhow.com/ornamental/vines/wisteria/wisteria-blooming-problems.htm