I'm thinking Oenothera biennis.

Yes agreed.

Thank you. I’ll keep them. The garden is very wild and very large, perhaps they’ll help keep some of the more pernicious volunteers at bay. Will move to the back though.

I do not think it will survive a move. It is biennial with a deep taproot. After it has flowered it will not come back next year anyway. Let it set seed and then remove any seedlings growing in places where you don't want them.

Thanks Floral. I decided most of them were just fine where they are, but will definitely look for seedlings next year to put in the back of the garden.