Physostegia leptophylla

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Slenderleaf Obedient Plant

Lamiaceae (Labiatae)

Plant Specifics

Size:To 3 ft tall.  Clonal forming patches.
Life Span:Long-lived perennial
Flower Color:Pink, purple
Fruit Color:Brown (not showy)
Phenology:Winter dormant, blooms late spring to summer
Noted for:Showy flowers


Recommended Uses:Water gardens and pond edges.  Moist wildflower gardens.
Propagation:Division and seed.
Availability:Specialty providers
Light: Full Sun,  Part Shade
Moisture Tolerance:
always floodedextremely dry
 (Stays Wet ----- to ----- Somewhat moist, no flooding)
Moisture Tolerance: Stays Wet ----- to ----- Somewhat moist, no flooding
Salt Water Flooding Tolerance:Not salt tolerant of inundation by salty or brackish water.
Salt Spray/ Salty Soil Tolerance:Low/no tolerance of salty wind or direct salt spray
Soil or other substrate:Loam, Organic material (muck), Sand
Soil pH:Adaptable



Humminbirds are attracted to the nectar.


Generally pollinated by bumblebees.  Other long tongued bees, hummingbirds and the occasional butterfly sip nectar from the flowers (New Moon Nursery).

Native Habitats:Wet prairie, wet savannas, pond edges.

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

Suitable to grow in:
10A 8A 8B 9A 9B 

USDA zones are based on minimum winter temperatures