Spec sheet
- Hardiness
- Hardy to zone 4
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Sizes we grow
Container grown (CG)
- #1
- #5
About this plant
Compact, upright perennial. Finely-dissected, aromatic, gray-green foliage on stiff, upright, square stems. Whorls of 2-lipped, tubular, violet-blue flowers tiered in branched, terminal panicles appear over a long summer bloom.