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Grows in an upright, arching habit, typically reaching 2–4 feet tall. Hardiness: Hardy in USDA Zones 3–8. Garden Use & Benefits:

Adaptable to dry to moist, well-drained soils, including clay.

A popular cultivar with more prolific, darker blue flowers.

An essential late-season food source for butterflies, bees, and syrphid flies.

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