Hello toro last line of photos Katsura (cercidiphyllum) & some sort of frageria or potentilla second row a rock rose or cistus and a wall flower of some sort first row middle picture weigela ? first row first picture campanula?
Probably Wahlenbergia sp. - if not then compare with Campanula spp. Buddleja colvillei - with that dark tinting maybe cultivar 'Kewensis' Philadelphus coronarius 'Aureus' Cistus sp. - probably one of the common cultivars with strongly pink flowers and grayish leaves, maybe one like 'Sunset' Erysimum sp. - there is a familiar cultivar with flowers colored like this Cercidiphyllum Potentilla
I would be curious to know what that cultivar is. Might solve a mystery. The plants looks like the one we have tentatively labelled "Emm's Variety". This post refers to that plant, but Mr. Weeks was not familiar with any cultivar like that one. Maybe it is a local cultivar that has a few names. I have attached a photo of the plants that I took last night in the garden (May 27, 2008).
The name came back to me looking at this now: 'Wenlock Beauty'. Don't know enough about these to even say if there is one or several with this same type of coloring.