Fringe-leaf Ruellia
Ruellia humilis
Last reviewed: July 2026
Fringe-leaf Ruellia is a native wildflower found across the eastern and central United States that produces purple tubular flowers from June through September. This drought-tolerant perennial attracts bees and butterflies to prairies and open woodlands.
The USDA PLANTS Database (opens in new tab) does not flag Fringe-leaf Ruellia as toxic to livestock.
Light
full sun
Water
low
Size
6"–24" H × 6"–18" W
Bloom
Jun, Jul, Aug, Sep
Native to
AL, AR, FL, GA and 21 more states
Pollinators
bees, butterflies
Browse plants for this ecoregion
Fringe-leaf ruellia is a low-growing native wildflower that produces small purple flowers from summer into early fall. This compact perennial forms neat clumps with narrow leaves and maintains a relatively tidy appearance throughout the growing season.
Growing Fringe-leaf Ruellia
Grow Fringe-leaf Ruellia in full sun and low water. Mature plants reach 6 to 24 inches tall and spread 6 to 18 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Fringe-leaf Ruellia is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.
Works well in: mid zone, foundation.
- Small flowers may not provide enough visual impact for some HOAs
- Dies back completely in winter leaving bare spots
Wildlife value
The purple blooms attract various bees and butterflies during the long flowering period from June through September.
Common questions
- When does Fringe-leaf Ruellia bloom?
- Fringe-leaf Ruellia blooms from June through September, producing purple tubular flowers that attract pollinators throughout the summer and early fall.
- Where is Ruellia humilis native?
- Ruellia humilis is native to 25 states across the eastern and central United States, from Minnesota and Wisconsin south to Florida and Texas, including the Great Lakes region and southeastern states.
- What pollinators visit Fringe-leaf Ruellia?
- Bees and butterflies are the primary pollinators of Fringe-leaf Ruellia, attracted to its purple tubular flowers during the summer blooming period.
- How much water does Ruellia humilis need?
- Fringe-leaf Ruellia is drought-tolerant and thrives with low water requirements once established, making it suitable for xeriscaping and low-maintenance landscapes.
- Is Fringe-leaf Ruellia toxic to livestock?
- The USDA PLANTS Database does not flag Fringe-leaf Ruellia as toxic to livestock.
- Is Fringe-leaf Ruellia HOA-friendly?
- Fringe-leaf Ruellia is generally an HOA-friendly choice in the right placement, with low maintenance.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Fringe-leaf Ruellia? 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