Best grown in loose, sandy-humusy, medium moisture, well-drained soils in full sun. Avoid unamended heavy clay soils. Also avoid wet soils, especially in winter. Plants have some drought tolerance. Plants may be grown from seed. In optimum growing conditions, plants will self seed in the garden. Plants do not perform well in the deep South (south of USDA Zone 7) due to high summer heat and humidity.
|Height||12" to 24"|
|Light Requirements||Full sun|
|Bloom time||July to September|
|Zone||4 to 7|
Watch for powdery mildew
avoid wet soils
All info from Missouri Botanical Garden