- low maintenance, dense growing perennial
- height about 90 cm, Pollux® is the tallest of the three new varietes
- healthy dark green foliage, resistant to powdery mildew
- flowers pale purple with a yellow centre; young flowers have a slightly lighter centre
- long flowering period: mid-August – end of October, peaking in September
- ideal for use in larger beds, embankments etc.
- easy to maintain, requiring an annual mowing in early spring
- the strong purple shade of Pollux® is new to A. ageratoides, adding a strong colour to the range