I've tried several, such as 'Nelly Moser '& the good 'Dr. Ruppel,'' but I think 'Kilian Donahue' ( or similar one) is stunning & more of really better companion , no matter what the group, it's in. Though hadn't tried it, to see if it bloomed at same time. I first started with 'Duchess Edinburgh' way back in th e80's & thought some Nelly Moser.' to be impostors..(as it turned greyish?) While, I think my Dr, Ruppel from Brushwood, lasted many years, from about when it first opened business !
I may have used the white Henryii, or similar 'maybe 'Guernsey Cream"? Not sure if I recall that last one, correctly..For a pink, red, white & purple scheme & added a large blue flowered, eventually.Now, it's almost time to start over...