Description: Compact upright plant with convex dark green leaves. Large ruffled dark purple flowers in dome shaped trusses. Stunning with creams and yellows
Ultimate Height: 3.0 meters after 10 years
Flowering Period: This plants flowers in the North Hemisphere around May-June
Hardy anywhere in the UK and moderate parts of Europe such as Holland, southern Sweden, coastal Denmark, favourable parts of Germany etc, moderate parts of NE USA and eastern Canada. (Please note.)