Photo by Melody

PlantFiles: Obedient Plant, False Dragonhead
Physostegia virginiana 'Alba'

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: Alba

16 members have or want this plant for trade.


18-24 in. (45-60 cm)

Unknown - Tell us

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)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Mid Summer

Unknown - Tell us

Other details:
This plant is attractive to bees, butterflies and/or birds

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From herbaceous stem cuttings

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By bootandall
Thumbnail #1 of Physostegia virginiana by bootandall

By greenorchid
Thumbnail #2 of Physostegia virginiana by greenorchid


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive plloyd On Jul 26, 2010, plloyd from Valley City, ND wrote:

Planted 1 Alba False Dragonhead about 6 years ago and it is located in sun all day long. It does not get water except for what Mother Nature provides and has since self-seeded 2 additional plants approximately 4 feet from the mother plant. Doesn't mind poor soil and no water. Love this plant!! It blooms for an exceedingly long time.

Positive MtnGardener On May 18, 2008, MtnGardener from Longmont, CO (Zone 5a) wrote:

Very showy white flowers. It tolerates getting early morning sun and then none in the afternoon. It needs to be kept moist and wilts easily if the ground gets dry. I'm transplanting a bunch into the full sun, over 9 hours of sun a day, so we'll see what happens. Non invasive here and spreads very gradually. After 4 years the original plants have doubled their size. Very pretty plant


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

Longmont, Colorado
Rockford, Illinois
Davenport, Iowa
Lineville, Iowa
Prospect, Kentucky
Grants Pass, Oregon
Norristown, Pennsylvania
Charleston, South Carolina
Springfield, Virginia
Oconomowoc, Wisconsin

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