• Photo of Physostegia purpurea (Physostegia purpureas)

Plant Profile: Physostegia purpurea

Taxonomy: Physostegia purpurea

Names

Eastern False Dragonhead, Savannah Obedient-plant

  • Photo of Physostegia purpurea (Physostegia purpureas)

Phonetic Spelling:fy-so-STEEJ-ee-uh pur-PUR-ee-uh

Genus:Physostegia

Species:purpurea

Family:Lamiaceae

The Eastern False Dragonhead is a perennial plant belonging to the mint family, indigenous to the southeastern United States. In North Carolina, it thrives in coastal plains and regions, particularly in wet savannas, ecotones between savannas and swamps, as well as in ditches near former pinelands, preferring moist, well-drained sandy soils that lack humus. This species does not tolerate salt.

Its striking purple flowers bloom from May to August, creating a vibrant display that attracts various pollinators, including hummingbirds. This plant is best suited for full sun exposure in bogs, swamps, or wet savannas located in coastal environments.

Physostegia purpurea Feature Summary

Physostegia purpurea Image Gallery

Tags

#hummingbirds
#water garden
#purple flowers
#native perennial
#NC native
#swamps
#food source summer
#food source nectar
#food source pollen
#Coastal FACW
#Piedmont Mountains FACW
#bird friendly
#food source hard mast fruit
#sandy soil
#bee friendly
#bog gardens
#audubon
#wet soils intolerant

Similar Plants

Physostegia purpurea Feature Summary

Attributes
Southeastern U.S.A.
NC, SC, GA, FL
This plant attracts songbirds, hummingbirds, and bees.
Perennial
Fruit
Olive-brown fruit displays from June to September.
Schizocarp
Brown/Copper
Flowers
5-lobed, 2-lipped pinkish-purple flowers with 4 stamens bloom from May to Aug.
Pink
Purple/Lavender
4-5 petals/rays
Leaves
Lance-shaped green leaves with slightly toothed margins
Lanceolate
3-6 inches
1-3 inches
Whole Plant Traits
Perennial
Native Plant
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Good Drainage
Moist
Occasionally Wet
Coastal
8b
8a
9a
9b
10a
10b
11a
11b
Landscape
Rain Garden
Native Garden
Water Garden
Songbirds
Bees
Hummingbirds

Physostegia purpurea Attributes

Physostegia purpurea: Country Or Region Of Origin

Southeastern U.S.A.

Physostegia purpurea: Distribution

NC, SC, GA, FL

Physostegia purpurea: Wildlife Value

This plant attracts songbirds, hummingbirds, and bees.

Physostegia purpurea: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Physostegia purpurea Fruit

Physostegia purpurea: Fruit Description

Olive-brown fruit displays from June to September.

Physostegia purpurea: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Physostegia purpurea: Fruit Color

grass
Brown/Copper

Physostegia purpurea: Display/Harvest Time

Fall
Spring
Summer
Winter

Physostegia purpurea Flowers

Physostegia purpurea: Flower Description

5-lobed, 2-lipped pinkish-purple flowers with 4 stamens bloom from May to Aug.

Physostegia purpurea: Flower Color

filter_vintage
Pink
filter_vintage
Purple/Lavender

Physostegia purpurea: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Physostegia purpurea: Flower Bloom Time

Winter
Spring
Summer
Fall

Physostegia purpurea: Flower Petals

2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals

Physostegia purpurea: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Physostegia purpurea Leaves

Physostegia purpurea: Leaf Description

Lance-shaped green leaves with slightly toothed margins

Physostegia purpurea: Leaf Color

spa
Green

Physostegia purpurea: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Physostegia purpurea: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Physostegia purpurea: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Physostegia purpurea: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Physostegia purpurea: Hairs Present

No
Yes

Physostegia purpurea: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Physostegia purpurea: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Physostegia purpurea Stem

Physostegia purpurea: Stem Description

Square green stems

Physostegia purpurea: Stem Color

grass
Green

Physostegia purpurea: Stem Is Aromatic

No
Yes

Physostegia purpurea: Stem Cross Section

Angular
Oval
Round
Square

Physostegia purpurea Whole Plant Traits

Physostegia purpurea: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Physostegia purpurea Cultural Conditions

Physostegia purpurea: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Physostegia purpurea: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Physostegia purpurea: NC Region

Coastal
Mountains
Piedmont

Physostegia purpurea: USDA Plant Hardiness Zone

thermostat
10a
thermostat
10b
thermostat
11a
thermostat
11b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Physostegia purpurea: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Physostegia purpurea Landscape

Physostegia purpurea: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Physostegia purpurea: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Physostegia purpurea: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees