Fine textured grey-green foliage forms a mound that gives rise to masses of double voilet-blue flowers starting in May and continuing into July. Strong rebloom starting in August. Long blooming and reblooming. Perfect for massing in the front of a garden or for use in mixed perennial containers. Great fall color source. Easy to grow . Thrives in full to half day sun. Feed yearly with an organic fertilizer. Prune in late winter or very early spring to remove damaged foliage and to revitalize.
Plant in any soil that drains well. Full sun is preferred but will tolerate part shade, though the blooms might not be as prolific. Remove spent blooms to encourage repeat bloom.