Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Physostegia intermedia

Spring obedient plant, Marsh obedient plant, Slender false dragonhead, Intermediate false dragonhead

Lamiaceae (Mint Family)

Physostegia intermedia (Spring obedient plant)
Bransford, W.D. and Dolphia
The slender, 1-5 ft. stem of this perennial is solitary and usually unbranched. Its leaves are large and numerous toward the bottom, becoming progressively smaller and more widely spaced upward. Purple-streaked, lavender, funnel-shaped flowers cluster in terminal spikes.

This plant will grow in shallow, standing water. It attracts butterflies and hummingbirds.

Image Gallery:

18 photo(s) available

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: 1-5 feet.
Size Class: 3-6 ft.

Bloom Information

Bloom Color: White , Pink , Purple
Bloom Time: May , Jun , Jul


USA: AL , AR , IL , KY , LA , MO , OK , TX
Native Distribution: KY & two s. IL cos. to extreme s.e. MO, s. to LA & TX
Native Habitat: Stream banks Flood plains, Marshes, Swamps, Flood plains, bottomland

Growing Conditions

Water Use: High
Light Requirement: Sun , Part Shade
Soil Moisture: Moist
Aquatic: yes
Soil Description: Moist, heavy soils. Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay
Conditions Comments: Excellent plant when used at the edge of the water garden. Can be planted in gardens in part-shade with moist soil. Easy to grow. Good for wetland gardens and habitat. Can be used in shallow, standing water. It also has potential to be invasive.


Use Ornamental: Showy, Blooms ornamental, Bog or pond area, Water garden, Perennial garden
Use Wildlife: Obedient plant attracts butterflies and hummingbirds. Nectar-Bees, Nectar-insects
Conspicuous Flowers: yes
Nectar Source: yes
Deer Resistant: High

Last Update: 2015-12-19