Brilliant chartreuse leaves. 18 – 24″ tall. Blue or white flowers May – June. Light to moderate shade, well-drained soil. Cut back hard after flowering for a summer rejuvenation of foliage. Freely self-sows. Hummingbird & butterfly magnets. An old-fashioned favorite with a new twist! Companions include: ferns, spring bulbs, aconitum, tricyrtis, and sisyrinchium. Zone 3.

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