wild petunia Ruellia humilis Type:native perennialsperennials Notable Traits:attracts butterflies/pollinatorsgreen roof plantsheirloom garden plantsresistant: deerresistant: diseaseresistant: rabbit Hardiness:Zone 4 – 8 Mature Height:8-12in Light:sun (8+ hrs) Water:drought tolerant once established Bloom Color:pink Bloom Shape:trumpet Bloom Time:fallspringsummer Foliage:green Butterfly Host:Common Buckeye Description Native Range Tubular, bell-shaped, petunia-like flowers up to 3″ long open from May to October on drought-loving plants that self-seed without becoming invasive. Lavender to lilac flowers appear singly or in clusters. Host plant for the Common Buckeye butterfly.