Physostegia virginiana, Obedient Plant

Obedient plant
Physostegia virginiana

Hardiness: Zones 3 to 9
Plant type: Herbaceous perennial
Height: 3- 4'
Spread: 2- 3'
Sun: Full sun
Water: Medium
Bloom time: June to September
Bloom color: Pink, white
Soil: Clay-based, moist, organically rich soils, loamy, average well-draining soils, acid (<7pH).

Notes: Can become a bit aggressive in moist soil; it is better behaved in drier soils and is easily managed with a bit of hand pulling

More information on this plant here.