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Obedient Plant, False Dragonhead 'Summer Snow'

Physostegia virginiana

Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Physostegia (fy-so-STEEJ-ee-uh) (Info)
Species: virginiana (vir-jin-ee-AN-uh) (Info)
Cultivar: Summer Snow



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


24-36 in. (60-90 cm)


18-24 in. (45-60 cm)


USDA Zone 2a: to -45.5 C (-50 F)

USDA Zone 2b: to -42.7 C (-45 F)

USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade


Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Mid Summer


Unknown - Tell us

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds


This plant has been said to grow in the following regions:

Divernon, Illinois

Hobart, Indiana

Tracy, Iowa

Derby, Kansas

Takoma Park, Maryland

Geneva, Ohio

Norman, Oklahoma

Charleston, South Carolina

Sioux Falls, South Dakota

Falls Church, Virginia

show all

Gardeners' Notes:


On May 5, 2010, gardeningfun from Harpersfield, OH (Zone 5a) wrote:

The white Obedient Plant seems to truly be obedient, unlike the purple version; which is prolific. I bought both a white and a purple pot and the purple has become a 2' by 3' border. The white one is only an inch or so fuller this year. It hasn't spread at all in the bed. The purple are spreading everywhere and I can tell I will be pulling some of those out very soon. They are beautiful together and are one of my favorites. Very easy to grow in my clay soil. We had very high winds and lots of snow this winter, too; and it hasn't hurt them at all. I only put them in last summer and I will already be giving some of the purple to friends. Love it.


On Dec 3, 2009, jmorth from Divernon, IL (Zone 5b) wrote:

Called obedient plant because the flowers, when manually moved sideways, retain the new position. The wild species is found in moist to dry prairies.


On Mar 22, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

Tall 3' - Plant 14" apart. White flowers sparkle. 3'.