Ruellia humilis is a drought-tolerant prairie native with lavender-blue petunia-like flowers. The fuzzy foliage sprawls gracefully, creating an attractive skirting to other perennials that may have bare legs in the summer. Despite the common name and the similarity in flower shape, Ruellia humilis is not a petunia and is not related to petunias! Olive green leaves and stems are hairy.
Height: 1.5-2 ft. Spread: 1.5-2 ft.
Bloom time: May to October
Sun: full sun to part shade
Water: dry to medium Rain garden
Somewhat deer resistant
photo credit: peganum