Carolina Wild-petunia
Ruellia caroliniensis
Found in dry to moist forests and woodlands. Weakley, Flora of the Southeastern United States (2025), Florida edition What its natural habitat tells you
Native to Florida. How scores work Is it native here?
Profile 88%
- Height
- 1–3 feet
- Spread
- 6 inches–1 foot
- Light
- Partial shade
- Soil moisture
- Somewhat dry to moist
Space about 1 ft apart from its recorded spread, about 100 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?
At a glance
- Life cycle
- Perennial
Not yet recorded · Leaves · Bloom
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 62 Florida counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Forests and open woodlands on dry ridges and slopes, often oak or pine.
Forests on moist but not wet ground, such as rich slopes and ravines.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Florida. Shared habitat, not food. 104 animals.
- Purple FinchCarpodacus purpureus
- Red-bellied WoodpeckerMelanerpes carolinus
- Red-cockaded WoodpeckerPicoides borealis
- Red-headed WoodpeckerMelanerpes erythrocephalus
- Red-tailed HawkButeo jamaicensis
- Red-winged BlackbirdAgelaius phoeniceus
- Ruby-crowned KingletRegulus calendula
- Sharp-shinned HawkAccipiter striatus
- Swallow-tailed KiteElanoides forficatus
- Tufted TitmouseBaeolophus bicolor
- Turkey VultureCathartes aura
- White-eyed VireoVireo griseus
- White-throated SparrowZonotrichia albicollis
- Wild TurkeyMeleagris gallopavo
- Yellow-bellied SapsuckerSphyrapicus varius
- Yellow-breasted ChatIcteria virens
- Yellow-rumped WarblerDendroica coronata
- American Black DuckAnas rubripes
- American KestrelFalco sparverius
- Belted KingfisherMegaceryle alcyon
- Black-and-White WarblerMniotilta varia
- Black-crowned Night-heronNycticorax nycticorax
- Chuck-will's-widowCaprimulgus carolinensis
- Common Ground-doveColumbina passerina
Who uses this plant?
11CaterpillarsGenus host records with ranges including FL
Genus host records with ranges including FL · Ruellia
- Junonia coeniaCommon Buckeye
- Anartia jatrophaeWhite Peacock
- Anthanassa frisiaCuban Crescent
- Anthanassa texanaTexan Crescent
- Junonia neildiMangrove Buckeye
- Junonia zonalisCaribbean Buckeye, Tropical Buckeye, Florida Buckeye, Smoky Buckeye
- Siproeta stelenesMalachite
- Tripudia paraplesiaX
- Tripudia rectangulaWild Petunia Seed Moth, Rectangular Tripudia
- Hileithia aplicalis
Show all 11
- Hileithia differentialis
13BeesSoutheastern regional records
Southeastern regional records · Ruellia
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Acanthaceae
- Soil pH
- Acidic
- Flower color
- Blue or purple
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “Blue or purple” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Height · “1–3 feet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Lady Bird Johnson Wildflower Center differ)
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Lady Bird Johnson Wildflower Center differ)
- Soil · “Moist; Occasionally dry” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Lady Bird Johnson Wildflower Center differ)
- Soil pH · “Acidic” · NC Extension Plant Toolbox
- Spread · “6 inches–1 foot” · NC Extension Plant Toolbox
Also known as
Carolina Wild Petunia
Conservation status
| Florida rank | S5 |
|---|---|
| Global rank | G5 |
| FL status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Growing cautions
- Self-seeds. Re-seeds but is not aggressive. Tennessee Smart Yards
For planning only; these do not change the score or Fit.
Sources
- Atlas of Florida Plants
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Florida edition
- NatureServe Explorer
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

























