Ruellia humilis
Ruellia humilis is a native perennial wild petunia with delicate lavender pink trumpet shaped flowers that bloom from late spring through summer. Its low growing habit and soft green foliage bring a natural meadow character to sunny gardens while providing a valuable nectar source for pollinators.
Height & Spread: 12 - 18 in x 12 - 18 in
Bloom Time: Late spring to summer
Light Requirements: Full sun to part shade
Soil Preference: Average to dry well drained soil
Watering Needs: Low to moderate; drought tolerant once established
Deer Resistance: Deer resistant
Native Status
This species is native to the central and eastern United States where it naturally occurs in prairies, open woodlands, and dry grasslands. It is valued in native plantings for its adaptability and ability to support local pollinators.
WILDLIFE & INSECTS
Butterflies
- Attracts butterflies including Swallowtails and skippers which visit the tubular flowers for nectar throughout the bloom season.
Bees
- Supports native bees and bumblebees which forage among the lavender blooms for nectar and pollen.
Hummingbirds
- Draws hummingbirds which are attracted to its trumpet shaped flowers and readily available nectar.
Spacing & Landscape Use
Spacing Recommendations
- Space 12 - 18 in apart to allow its spreading habit to form a natural flowering colony.
Landscape Placement
- Ideal for native gardens, prairie plantings, sunny borders, and pollinator gardens where its airy form and long bloom period can be appreciated.
Companion Plants
- Asclepias tuberosa (Butterfly Weed) - Adds vibrant orange blooms and strong pollinator value while complementing the soft lavender flowers.
- Schizachyrium scoparium (Little Bluestem) - Provides upright grass texture and seasonal color that pairs naturally with this native perennial.
- Rudbeckia fulgida 'Goldsturm' (Black Eyed Susan) - Brings bright summer color and supports a similar sunny growing environment.
- Monarda punctata (Dotted Horsemint) - Adds unique spotted blooms and attracts additional pollinators to native plantings.
- Solidago rugosa 'Fireworks' (Goldenrod) - Extends the flowering season with late summer golden blooms and wildlife value.