lovely, old-world-esque obedient plant blossoming - physostegia virginiana

flower plant wildflower purple herb lilac blossom petal shrub produce lavender leaf violet pink lovely old-world old-world-esque obedient blossoming physostegia virginiana obedience false dragonhead species flowering mint family lamiaceae native north america distributed eastern canada northern mexico commonly plants pushed side stay position name “false dragonhead” dragonheads dracocephalum genus rhizomatous herbaceous perennial producing clumps stiff squared stems 2–4 ft 61–1 22 m tall leaves lanceolate toothed inflorescence long dense raceme tubular flowers resemble snapdragons shaped triangular