Yes - looks like a wallflower/Erysimum to me. There are a many types, but that's likely to have been a seed sown biennial one, and will have been grown on undercover, so would need some protection before planting out.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Hello Lovely wallflowers to give them their day to day name, they’re biennial so usually scrapped after the last flowers but some folk keep them going as short lived perennials . I’ve some in large tubs planted up last Autumn but they’re no where near flowering.
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In the sticks near Peterborough
I live in west central Scotland - not where that photo is...