Ruellia caroliniensis

Carolina Wildpetunia, Wild Petunia

Acanthaceae

Plant Specifics

Form:Flower
Life Span:Short-lived perennial
Flower Color:Blue,lavender
Fruit Color:Green,brown
Phenology:Winter dormant
Noted for:Showy flowers

Landscaping

Recommended Uses:Groundcover along with other low-growing wildflowers.
Propagation:Seed capsules are mature and ready to be collected about two months after the flower withers and the capsule turns brown. These pods will eventually open on their own and self-seed, so it is best to bag the seed pods when they first turn brown. Seeds must be cold stratified to insure germination. Carolina Wild Petunia can also be propagated by summer cuttings and propagation by division once the plant is a couple of years old.
Availability:Native nurseries, FNPS plant sales, Seed
Light: Full Sun,  Part Shade,  Shade
Moisture Tolerance:
always floodedextremely dry
 (Usually moist, occasional inundation ----- to ----- Somewhat long very dry periods)
Moisture Tolerance: Usually moist, occasional inundation ----- to ----- Somewhat long very dry periods
Salt Water Flooding Tolerance:Tolerant of inundation with brackish water
Salt Spray/ Salty Soil Tolerance:Some tolerance to salty wind but not direct salt spray.
Soil or other substrate:Sand
Soil pH:7.9 to 8.5

Ecology

Wildlife:
Insects:
  

Larval host for Common Buckeye (Junonia coenia) and White Peacock (Anartia jatrophae) butterflies.

Attracts many pollinators.

Native Habitats:Dry mesic hammocks, flatwoods, sandhill, disturbed areas.

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

Suitable to grow in:
10A 10B 11 8A 8B 9A 9B 

USDA zones are based on minimum winter temperatures

Comments

General Comments:Wild petunia's flower only last for a day, but they have a very long flowering period, starting in early spring and going strong through the fall. Please use this Florida native instead of its widely-sold relative, the invasive Mexican petunia.