wisteria flowering problems

Question

My wisteria is full of buds, some of which are in full bloom, where other buds have just wilted, which is worrying, as I don’t know why this is happening. Please advise.

Thank you, Eva

Answer 1

Have you had a cold snap lately? The buds that withered, may have done so if they were touched by frost. Flowers are for more susceptible to cold damage than the rest of the plant. The ones that remained undamaged may have had some protection from frost from a near by wall or structure that gave off enough heat to keep the frost from touching the flowers.

It may also be thrips. If you suspect thrips, this article will help:
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm