Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Full Sun
Bloom Color: Bright Yellow
Bloom Time: Late Spring/Early Summer Mid Summer
Other details: Requires consistently moist soil; do not let dry out between waterings
Soil pH requirements: 5.1 to 5.5 (strongly acidic) 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
On Jun 10, 2008, GreeneLady from Oak Island, NC (Zone 8a) wrote:
I planted this from seed earlier this year. I directly sowed the seed in a prepared garden bed and just kept it wet. They were extremely easy to grow and have already bloomed. These darling little flowers are a nice companion for dwarf sun flowers and terra cotta calibrachoa (million bells).
A very beautiful plant. With minimal care it is easy to have a lush plant that is chock full of blooms!
Light aids germination of seeds.
This plant has been said to grow in the following regions:
Marion, Arkansas Denver, Colorado Harlem, Georgia Warren Park, Indiana Salem, Kentucky Cornville, Maine Blissfield, Michigan Dearborn Heights, Michigan Royal Oak, Michigan Buffalo, New York Elba, New York Garrettsville, Ohio Glouster, Ohio Hershey, Pennsylvania Penn Hills, Pennsylvania Corryton, Tennessee Knoxville, Tennessee Amarillo, Texas Cleburne, Texas Houston, Texas Fruit Heights, Utah Kalama, Washington Birchwood, Wisconsin Madison, Wisconsin Bessemer Bend, Wyoming