[2] Physostegia are known commonly as obedient plants because a flower pushed to one side will often stay in that position.
[1] It is a rhizomatous herbaceous perennial producing clumps of stiff, squared stems 2–4 ft (0.61–1.22 m) tall.
The inflorescence is a long, dense raceme containing many tubular pink flowers which resemble snapdragons.
Fertile soils produce robust growth and wide spreading, and the plant may require staking.
[7] Some (agm) have earned the Royal Horticultural Society's Award of Garden Merit.