Isn’t it true that you need ants or wasps to make your peonies bloom?

Question

My neighour killed all the ants and wasps on her peonies and they never bloomed. I left the ants and wasps alone, mine bloomed to their fullest.

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Answer 1

No, they aren't necessary. The ants and wasps are just trying to get to the nectar from the buds. Odd, though, that your neighbor's peonies didn't bloom. I wonder if she did some dividing of the peonies. They don't like that and may not bloom for a few years afterwards.

You can show her this article:

https://www.gardeningknowhow.com/ornamental/flowers/peony/why-your-peony-buds-but-never-flowers.htm