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Dwarf Ruellia, Mexican Petunia, Britton's Wild Petunia
Ruellia brittoniana
Upright, rounded to clumping habit. Narrow, 3 inch long, dark green leaves. Generally lush looking, but can become rangy. Trumpet-shaped flowers. Original purple-flowered variety is potentially invasive. Has several common cultivars with different flower colors: 'Blanca' is white, 'Katie' is blue, and 'Rosa' is pink. The cultivars are not known to be invasive. Prefers amended soils. Somewhat cold sensitive in our area. Cut back in late winter. Synonyms: Ruellia caerulea, Ruellia tweediana.
- Plant type: Perennial, Groundcover
- Maintenance level: Medium, Low
- Water requirement: Low
- Sun exposure: Full, Part Sun, Morning Sun, Afternoon Sun
- Height range: 1–3 Feet
- Width range: 2–4 Feet
- Canopy value: 7 ft²
- Growth rate: Medium
- Seasonal habit: Evergreen, Semi-Evergreen
- Flower color: Blue, White, Purple, Pink
- Flower season: Spring, Summer, Autumn
- General foliage color: Green
- Design style: Butterflies
- Hardiness cold tolerance: 15 °F
- Soil preference: Sand, Loam, Well Drained
- Native location: Mexico
- PH preference: Not Particular
- Sunset zones: 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
- USDA hardiness zone: 8a, 8b, 9a, 9b, 10a, 10b
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