Obedient plant is typically anything but, often spreading rambunctiously. One subspecies is quite well mannered, however, as modeled by 'Miss Manners'. Her white midsummer flower spikes on 30-inch stems play nicely in garden color schemes. Propagated from divisions. Zone 5. Deep 3.5-inch pots. Photo: David J. Stang, licensed under CC BY-SA 4.0