Lychnis chalcedonica - 2011

Is that a white form Andrew?, have red and salmon pink but never seen a white, look lovely together.

Simbad, yes, it's a white-flowered version and does just as well as the red. I find the pink is weaker and later-flowering (no sign of it yet)

I have the red too..the white would be good as its tall and fairly slim as a plant..got places it would go so will add it to my list.