Last week this plant had 6 blooms on it! It's Hanne Popow x Cardinale.
This plant originally came from a person who really knew their plants and had this labelled as a cadautum. After several detailed pictures of the plant were reviewed by two experts, the consensus is it's a Grande. I was given it by a friend last summer as a 4 growth division and it just exploded! Two of the growths have 3 flowers open at once and more buds are on top!
a closeup of the flowers.