False Dragon Head Physostegia virginiana

In the mint family, the obedient plant gets its name from the ability of the flowers on the stalk to be twisted into any position, where they will remain.  It can be invasive in rich, moist soils, so gardeners should divide clumps every year or so to keep plants contained, and pull out plants invading other parts of the garden. A great choice for a meadow garden, it is visited by bees and other pollinators.  

The flowers are 1" pale purple to rose, borne on a showy terminal spike.  The corolla is swollen at the throat, the upper lip is domed, the lower lip is spreading ahs has three lobes.  Its stems may flop in rich soils, shade or hot temperatures, making staking of taller plants necessary.  Each spike of flowers bloom starting at the bottom and working their way up the spike to the top.  

Obedient plants grow best in moist, well-drained, moderately fertile soil and sun to partial shade.  In the wild, they can be found in wet meadows, bogs, and banks of streams.  They can be propagated by seed or by division of roots in the spring.