Wisteria Vine

Question

The leaves on my wisteria vine are turning yellow and then dying. It is blooming and the flowers look great, but only the newer leaves are green. Is it getting too much water?

Answer 1

When older leaves turn yellow while the younger leaves are still green this can signal a nitrogen deficiency.

Here is an article that will tell you how to correct the nitrogen deficiency in your soil:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/nitrogen-plant-fertilizer.htm