This is a question for Tamsin or Ebbett (or anyone else who might know!).
I’m interested in John Elsley’s new Dogwood, which is on sale this week. It’s listed as Cornus angustata, but Dirr — my Bible for woody plants! — doesn’t even list that as a species! I’m actually wondering about putting one at my Isle of Palms house (and keeping the other one here), but I don’t know whether it likes the coast.