The mixture of sterile and fertile florets are not tightly packed and give the flower head an airy look. In cooler temperatures the sepals turn pinkish. It will flower in late and bloom well into October. The origins are uncertain. One source suggests it is a French introduction and another that it was created at Windsor Great Park.
Origins: Developed at Windsor Great Park before 1975
Awards: RHS Award of Merit in 1966; RHS Award of Garden Merit in 1984
Height & Width: 2.5m x 2m
Plant Profile: Open PDF