Obedient Plant, False Dragonhead
Physostegia pulchella

Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Physostegia (fy-so-STEEJ-ee-uh) (Info)
Species: pulchella (pul-KEL-uh) (Info)

Category:

Perennials

Height:

24-36 in. (60-90 cm)

Spacing:

15-18 in. (38-45 cm)

Hardiness:

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)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Rose/Mauve

Violet/Lavender

Bloom Time:

Late Summer/Early Fall

Mid Fall

Foliage:

Herbaceous

Other details:

Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From herbaceous stem cuttings

From seed; direct sow after last frost

Seed Collecting:

Unknown - Tell us

Regional

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

Jones, Alabama

Bartow, Florida

Fayetteville, New York

Fargo, North Dakota

Dickson, Tennessee

Nashville, Tennessee

Arlington, Texas

Fort Worth, Texas

Montgomery, Texas

Shepherd, Texas

Spicewood, Texas

Richmond, Virginia

Springfield, Virginia

show all

Gardeners' Notes:

1
positive
3
neutrals
0
negatives
RatingContent
Neutral

On Apr 18, 2005, QueenB from Shepherd, TX (Zone 8b) wrote:

It just kind of showed up this year in my bog area. I didn't know for sure if it was going to be anything showy until it bloomed. It's a nice touch since it's tall and in the kind of in the middle. I've yet to find out if it's invasive.

Positive

On May 23, 2003, SunshineSue from Mississauga, ON (Zone 6a) wrote:

I've had this plant in my zone 5-6 garden for 3 years. This far north (Toronto area) it blooms mid-late August for several weeks & puts on a lovely display when many other plants have finished for the season. No special care required other than keeping new plants well watered until established. Staking may be required for mature plants. I have found this plant to be very invasive as it readily re-seeds all over the garden & could easily take over if left unchecked. Excess plants transplant very easily by digging out a clump a moving elsewhere. New transplants should be well watered & these suffer absolutely no transplant shock. A very hardy plant in our zone. Very easy to grow.

Neutral

On May 24, 2002, Wingnut from Spicewood, TX (Zone 8b) wrote:

There aren't many plants that will be this showy while growing in shady bog garden conditions. These one bloom for about three weeks in late May, early June here in Zone 8b, Central Texas. If happy, they'll spread slowly but surely, forming a wide drift that is gorgeous in bloom. I haven't tried to transplant them into other conditions, so don't know how well they'd do.

Obedient plants get their name from the curious tendency of the stems to stay put when you bend them.

Neutral

On Aug 31, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:

A native to moist bottomlands of West Texas.