visionspictures.com A rhizomatous, clump-forming, herbaceous perennial to around 90cm, with linear, strap-like, bright green leaves. Upright stems of dark blue-purple flowers with white and yellow throats appear in early June. Will grow in most soils, but performs best in damp soils, such as near a pond, where they will obtain their maximum height
Position
Soil Types
Max Height
0.5-1 metres
Max Spread
0.1-0.5 metres