Colour: Blue [ X ] Soil: Drained [ X ] Flowering: Mid Summer [ X ] Type: Hardy perennial [ X ]
30cm to 60cm (4) 60cm to 90cm (2) 90cm to 1.2m (2) Over 1.2m (2)
Part-shade (7) Sun (10)
Fast (1) Moderate (8) Slow (1)