Obedient Plant (False Dragonhead): Care & Growing Guide
Crystal Peak White Obedient Plant, Physostegia virginiana | High Country Gardens
Obedient plant' can be counted on to follow orders in Staten Island gardens - silive.com
I planted a single Obedient Plant (Physostegia virginiana) last summer and had to baby it during a drought. The largest one is what I started with, and the rest came from rhizome