My father-in-law had seven brothers, all with good Anglo-Saxon names, but his three sisters were called Rose, Violet and Daisy. There were many jokes about the sweet-smelling girls in the family.
I suppose flower names were and still remain popular, e.g. Lily, Marigold, and so on, but to have three of them in a family is a bit much. Of course, there's always Hyacinth Bucket (Boo-kay) and her sisters Rose, Daisy and Violet, who had room for a pony!