The specific epithet means low-growing or dwarfish. Genus name honors Jean de la Ruelle, French herbalist and physician to king of France. Features tubular, bell-shaped petunia-like flowers. Sow in late fall 1/8th inch deep or in spring after a period of cold, moist stratification for 60 days. Plant when temps are consistently above 50 degrees. Can be aggressive. Seeds maturing on plant can pop and fly up to 10 feet.
Ruellia humilis, Native Petunia
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Height: 1'-2'. Spread: 12"-18". Lavender bloom in June-August. Sun. Average-dry soil. Direct sow or start indoors. Germination: Cold stratification.