I'm dreaming of summer, and inspired by this Sarah Raven container, I'm thinking about growing dahlias with some salvia (the more delicate microphylla or jamesis types).
I've never grown Dahlias before... if I want to pair them in a (large) container, do I plant the dahlia tubers first and wait for them to grow before adding the salvia? Or should I start the dahlias in a small pot and then move them to their final 'home' once they're bigger.
Any advice is welcome!