Campanulas are ideal for shade, so I'd go with that, especially if it's a wetter site. Penstemons generally prefer a bit more sun, although some will be perfectly happy enough with a bit of shade.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
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Penstemons generally prefer a bit more sun, although some will be perfectly happy enough with a bit of shade.
I live in west central Scotland - not where that photo is...