Zones: 8 to 10
Size: To 3' tall
Growth Rate: Fast
Exposure: Sun, Filtered Sun, Part Shade
Tender evergreen perennial. Forms large colonies. Blue, pale pink and white flowers. Tall stems with linear pointed leaves, dark green, opposite, to 6" long. Trumpet shaped flowers. Seeds freely and can be a nuisance. Returns from seed in zone 7. Tolerates wet soils.
'Chi Chi' - may be more hardy, pink flowers.
Published in Anales Acad. Ci. Med. Habana 6: 321 in 1870.
Native to Mexico, the Caribbean and South America.
Accepted name for Ruellia britonniana
I was given a seedling of a blue flowering plant and planted it in the Wild Or Wacky garden in summer 2009. It has formed a dense clump about 3' in diameter and blooms regularly. The deer enjoy eating the flowers.