This particular plant (bloom started on 31 May) starts rather drab but becomes quite lovely after a few days. I call it "Summit Ugly Duckling" (per Hans Christian Anderson's tale about the ostracized "duckling" which matured into a swan, to the envy of the rest of the ducks. (Summit is my nursery identifier)). Usually it lasts more than 4 days but the continuous wet and a heavy rain turned the petals to mush by day 5 this year.
Oh, by the way, it's a little bit fragrant.