Hardiness: 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) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure: Light Shade
Danger: All parts of plant are poisonous if ingested
Bloom Color: Pale Pink Pink Rose/Mauve Light Blue Medium Blue Dark Blue Blue-Violet Violet/Lavender Purple White/Near White
Bloom Time: Mid Spring
Other details: Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
Patent Information: Non-patented
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets) From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse
Seed Collecting: Collect seedhead/pod when flowers fade; allow to dry Remove fleshy coating on seeds before storing Wear gloves to protect hands when handling seeds Seed does not store well; sow as soon as possible
On Mar 30, 2012, Clary from Lewisburg, PA (Zone 6b) wrote:
I'm very glad I planted windflowers. They are planted under some shrubs and bring a great pop of color to the area without a lot of height or leafiness. The daisy form is a cheerful contrast to the bulbs blooming at this time of year.
On Mar 27, 2012, Iambe69 from Park Ridge, IL wrote:
I have heavy clay soil, and I planted these last Fall after soaking the bulbs in water. The bulbs were the packaged type from a big-box store. Each has sprung up, with multiple blue and white flowers (no pinks, although the package indicated pink, as well). The blues showed up first. They are absolutely stunning, especially the blues. Although they are very tiny flowers, you can see the patches of blue from the street and can tell that they're adorable. The flowers close at night and reopen in the morning. I have not given them any special care, other than the initial soaking of the bulbs, and they are doing great. Looking forward to seeing them multiply in years to come.
I've had these for a number of years and they've never really done much or were very impressive. I've recently cleared out the area, so maybe they'll do a little better now. In my area, they bloom in April. The information on them that I have says that they are hardy in zones 5-10.
On Oct 21, 2004, Tiarella from Tunnel Hill, GA (Zone 7a) wrote:
These tiny flowers are only 2-3 inches tall, but their many large blooms are welcome at the end of February or early March and bloom for about a month. I have mine planted in a hosta bed, so I have blue color to fill the area before the hostas emerge. The blue and the white are the best colors. The pink leans toward a muddy pale purple.
On Jul 12, 2003, Toxicodendron from Piedmont, MO (Zone 6a) wrote:
I adore this little flower. I planted several bulbs many years ago and now it pops up wherever it pleases from seeds dispersed by wind, birds, or other methods. It grows in accumulated leaf mulch on top of weed barrier/plastic most often (around perennials and trees), and also mingles with my English Ivy. Blooms early, then disappears. Totally maintenance free.
On Apr 4, 2003, walkerh from Guntersville, AL wrote:
Blooms mid-February in zone 7 (USDA). Young bulbs are rather small and can easily be mistaken for clumps of soil, size increases slowly with age. Will freely self-sow. Seed heads are held above the leaves, making collection rather easy.
On Apr 25, 2001, kat7 from Bloomingdale, NJ (Zone 6a) wrote:
perennial with tuberous or fibrous roots. Poisonous if ingested. Hardy bulb. Bright, multicolored poppy-like flowers. Low growing with sky blue, pink, red or white flowers. HEIGHT-3-6" SPACE-8-12" SOWING-sow indoors 2 mnths before last frost. seeds need light to germinate-cover sparsely. Germination in 21-28 days at 65-70F. PLANT in full sun to part shade in well-drained soil amended with lots of organic matter. Prefers cool growing conditions.
This plant has been said to grow in the following regions:
Cos Cob, Connecticut Mount Prospect, Illinois Park Ridge, Illinois Washington, Illinois Oak Park, Indiana Hebron, Kentucky Sumner, Maine Hersey, Michigan Lansing, Michigan Okemos, Michigan Pinconning, Michigan Piedmont, Missouri Nelson, New Hampshire , New Jersey Alden, New York Pine City, New York Bucyrus, Ohio Dublin, Ohio Fruit Hill, Ohio Laflin, Pennsylvania Lewisburg, Pennsylvania Penn Wynne, Pennsylvania Conway, South Carolina Hermitage, Tennessee Hood, Virginia Merrimac, Virginia Kalama, Washington Seattle, Washington Shorewood Hills, Wisconsin Johnstown, Wyoming Riverton, Wyoming