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Other details: This plant is attractive to bees, butterflies and/or birds Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost From seed; direct sow after last frost
Seed Collecting: Collect seedhead/pod when flowers fade; allow to dry
On Nov 25, 2008, CurtisJones from Longmont, CO wrote:
From your friends at Botanical Interests: Annual. Summer bloom. 20" - 24" tall. Full sun. Drought tolerant. The sky blue flowers of this tall plant are attractive as cut or dried flowers. Will "naturalize" - seed drops quite readily and produces another crop of flowers. Seed must have darkness to germinate. Sow at depth of 1/4". Seed to 1" apart and thin to 6" - 8" apart. Plants have fewer flowers when grown in rich, overfertilized soils. The worse the soil, the better! An additional fun story: When Napoleon forced Queen Louise of Prussia from Berlin, she hid her children in a corn field and kept them entertained and quiet by weaving wreaths of Cornflowers (Bachelor Button). One of the children, Wilhelm, ultimately became the emperor of Germany. Remembering his mother's bravery, he made the Cornflower a national emblem of unity. Bachelor Button is known in England as Cornflower. The plant often comes up in fields of grain. *Bees are attracted to blue flowers and love this variety.
On Mar 4, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:
Brought to America from Europe in the 17th century and known to have been cultivated by Thomas Jefferson at Monticello. Plants will bloom throughout the growing season. Well maintained strain with all blue flowers. Extremely easy to grow and dries well. Self-seeding hardy annual, grows 2-3 ft tall.
This plant has been said to grow in the following regions:
North Little Rock, Arkansas Berkeley, California Irvine, California Long Beach, California Longmont, Colorado Cordele, Georgia Burr Ridge, Illinois Chicago, Illinois Centralia, Iowa Sageville, Iowa Brookville, Kansas Sapphire, North Carolina Cincinnati, Ohio Fairport Harbor, Ohio Denton, Texas San Antonio, Texas Chimacum, Washington