Cynanthuis Let Oks Dead And No Flowers This Year

Question

Blue flowering cyanthuis Wood looks dead Started to flower but flowers all dead and briwn

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Answer 1

This is, almost always, caused by a fungal infection. It would be hard to say which from this photo, but something this severe will require constant treatment until it is resolved.

https://www.gardeningknowhow.com/ornamental/trees/tgen/sudden-tree-death-causes.htm

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm