A favorite flowering perennial prized for its compact clumps of slender, green, grass-like leaves that are highlighted by charming, deep lavender-purple flowers on tall stems. Plant en masse for a stunning early summer show. An excellent choice to enhance border fronts and containers. Semi-evergreen in mild winter areas.
USDA Zone
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4-11
Your climate might be too cold for this plant:

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Light Needs
Full sun

Water Needs
Once established, water occasionally; more in extreme heat or containers.