Skip to main content

Carolina Wild Petunia

Ruellia caroliniensis

Last reviewed: August 2026

Ruellia caroliniensis (Carolina Wild Petunia) is a native wildflower blooming May through September across the southeastern and mid-Atlantic United States. This adaptable perennial attracts bees and butterflies with its purple trumpet-shaped flowers.

Carolina Wild Petunia (Ruellia caroliniensis)
Photo: (c) Michael J. Papay, some rights reserved (CC BY), uploaded by Michael J. Papay

Toxicity unknown

Carolina Wild Petunia (Ruellia caroliniensis) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part sun

Water

medium

Size

8"–24" H × 8"–18" W

Bloom

May, Jun, Jul, Aug, Sep

Native to

AL, DE, FL, GA and 14 more states

Pollinators

bees, butterflies

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Wild petunia is a low-growing native perennial with small purple tubular flowers that bloom from late spring through early fall. It forms neat clumps with simple green leaves and produces delicate flowers that open in the morning. This hardy plant tolerates various conditions and provides consistent color throughout the growing season.

Growing Carolina Wild Petunia

Grow Carolina Wild Petunia in part sun and medium water. Mature plants reach 8 to 24 inches tall and spread 8 to 18 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Carolina Wild Petunia is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Wildlife value

The tubular flowers attract bees and butterflies throughout its long blooming period. It serves as a host plant for some butterfly species and provides nectar for various pollinators.

Common questions

When does Carolina Wild Petunia bloom?
Carolina Wild Petunia blooms from May through September, producing purple trumpet-shaped flowers throughout the growing season.
Where is Ruellia caroliniensis native?
This wildflower is native to 18 states from Texas east to Florida and north to Pennsylvania, including much of the southeastern and mid-Atlantic regions.
What pollinators visit Carolina Wild Petunia?
Bees and butterflies are the primary pollinators attracted to the tubular purple flowers of Ruellia caroliniensis.
What growing conditions does Carolina Wild Petunia prefer?
This adaptable native can grow in full sun to partial shade and tolerates a wide range of moisture conditions from wet to dry soils.
Is Carolina Wild Petunia HOA-friendly?
Carolina Wild Petunia is generally an HOA-friendly choice in the right placement, with low maintenance.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Carolina Wild Petunia? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Not sure where to start? Take the 2-minute yard quiz