I have two wisteria vines in our yard in fairly close proximity to each other. They are both old plants. I would guess 15 to 25 years old. One of them blooms so profusely it is a stunning show!! This plant is non-invasive and requires minimal pruning. The other vine has not bloomed in the ten years we have ived here but it is determined to climb every tree anywhere near it and needs constant pruning! Do we give up on the latter? Will it ever bloom? Any advice?
