• Photo of Ruellia caroliniensis (Ruellia caroliniensiss)

Plant Profile: Ruellia caroliniensis

Taxonomy: Ruellia caroliniensis

Names

Carolina Wild-petunia, Wild Petunia

  • Photo of Ruellia caroliniensis (Ruellia caroliniensiss)

Phonetic Spelling:roo-EL-ee-uh kair-oh-lin-ee-EN-sis

Genus:Ruellia

Species:caroliniensis

Family:Acanthaceae

Ruellia caroliniensis, commonly known as Wild-petunia, is prevalent throughout North Carolina, often found in both lawns and wooded areas. This native wildflower is so widespread that, despite its attractive appearance, it is occasionally regarded as a weed in lawns. This unbranched perennial can reach heights of 2 to 3 feet, featuring light green leaves that tend to grow densely. Its striking purple flowers bloom during the spring, summer, and fall seasons. The flowers, which lack stalks, appear in clusters of three to four in the axils of the leaves, with typically only one or two flowers open at any time. Although the blooms last just a single day, the extended flowering season more than makes up for it. Additionally, this plant is known for its prolific seed production.

**Habitat:** Thrives in dry to moist forests and woodlands.

Ruellia caroliniensis Feature Summary

Ruellia caroliniensis Image Gallery

Tags

#purple
#showy flowers
#perennial
#violet
#wildlife plant
#wildflower garden
#larval host plant
#food source summer
#food source fall
#Coastal OBL
#food source herbage
#sandy soils tolerant
#bird friendly
#food source hard mast fruit
#butterfly friendly
#FACU Piedmont Mountains
#FACU Coastal
#pollinator garden
#audubon
#common buckeye butterfly

Similar Plants

Ruellia caroliniensis Feature Summary

Attributes
Central and Eastern United States
This plant supports Common Buckeye (Junonia coenia) larvae which has two to three broods from May-October. Caterpillars eat the host plant's leaves while adults feed on the nectar of composite flowers including aster, chicory, gumweed, knapweed, and tickseed sunflower. Food source for songbirds.
Perennial
Fruit
Hard mast-fruit June-October
Flowers
Unstalked flowers in axillary clusters of three to four from May-September. Usually only one or two of the light purple flowers are open on any given day. The flowers have a slender corolla tube and five, petal-like lobes. Seeds are borne on hooked projections.
Purple/Lavender
Blue
Long Bloom Season
Spring
Summer
Fall
4-5 petals/rays
Leaves
Rich green, oval leaves crowded together on stem.
Stem
Violet, trumpet-shaped flowers on short hairy stems from leaf axils.
Hairy (pubescent)
Whole Plant Traits
Perennial
Wildflower
Cultural Conditions
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Moist
Occasionally Dry
Less than 12 inches
Coastal
Mountains
Piedmont
Landscape
Butterfly Garden
Pollinator Garden
Butterflies
Pollinators
Songbirds

Ruellia caroliniensis Attributes

Ruellia caroliniensis: Country Or Region Of Origin

Central and Eastern United States

Ruellia caroliniensis: Wildlife Value

This plant supports Common Buckeye (Junonia coenia) larvae which has two to three broods from May-October. Caterpillars eat the host plant's leaves while adults feed on the nectar of composite flowers including aster, chicory, gumweed, knapweed, and tickseed sunflower. Food source for songbirds.

Ruellia caroliniensis: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Ruellia caroliniensis: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Ruellia caroliniensis Fruit

Ruellia caroliniensis: Fruit Description

Hard mast-fruit June-October

Ruellia caroliniensis: Display/Harvest Time

Fall
Spring
Summer
Winter

Ruellia caroliniensis Flowers

Ruellia caroliniensis: Flower Description

Unstalked flowers in axillary clusters of three to four from May-September. Usually only one or two of the light purple flowers are open on any given day. The flowers have a slender corolla tube and five, petal-like lobes. Seeds are borne on hooked projections.

Ruellia caroliniensis: Flower Color

filter_vintage
Blue
filter_vintage
Purple/Lavender

Ruellia caroliniensis: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Ruellia caroliniensis: Flower Bloom Time

Winter
Spring
Summer
Fall

Ruellia caroliniensis: 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

Ruellia caroliniensis: Flower Shape

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

Ruellia caroliniensis Leaves

Ruellia caroliniensis: Leaf Description

Rich green, oval leaves crowded together on stem.

Ruellia caroliniensis: Leaf Color

spa
Green

Ruellia caroliniensis: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Ruellia caroliniensis: 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

Ruellia caroliniensis: Hairs Present

No
Yes

Ruellia caroliniensis Stem

Ruellia caroliniensis: Stem Description

Violet, trumpet-shaped flowers on short hairy stems from leaf axils.

Ruellia caroliniensis: Stem Is Aromatic

No
Yes

Ruellia caroliniensis: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Ruellia caroliniensis Whole Plant Traits

Ruellia caroliniensis: 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

Ruellia caroliniensis: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Ruellia caroliniensis: Maintenance

Low
Medium
High

Ruellia caroliniensis Cultural Conditions

Ruellia caroliniensis: 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)

Ruellia caroliniensis: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Ruellia caroliniensis: Soil Drainage

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

Ruellia caroliniensis: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Ruellia caroliniensis: NC Region

Coastal
Mountains
Piedmont

Ruellia caroliniensis: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Ruellia caroliniensis Landscape

Ruellia caroliniensis: 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

Ruellia caroliniensis: Attracts

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