A very ornamental plant. The flowers are often used in dried-flower arrangements because they retain their colour well.
This variety is a hardy annual. It bear charming and prolific flowers in bright blue and are especially welcome in the garden as that color is rare in nature. Each disc-shaped flower is about 3-4 cm across, with ragged petals radiating out from the center.
They make ideal plants for growing in simulated wild gardens.
The petals of cornflowers are the part used in herbal folklore. Cornflowers are considered to have tonic, stimulant and emmenagogue properties. An infusion of the flower petals was used as an eyewash and as an astringent mouthwash.
A good plant for bees, butterflies and moths.
Genus - Centaurea
Species - Cyanus
Variety - Blue
Common name - Cornflower
Pre-Treatment - Not-required
Hardiness zones - 2 - 10
Height - 0,50 - 0,80 m
Spread - 0,30 m
Plant type - Hardy annual flower
Exposure - Full Sun
Growth rate - Fast
Soil PH - Acid, neutral, alkaline
Soil type - Ordinary soil
Water requirements - Drought tolerant, dry, moist
Landscape uses - Border, Container, Foundation, Massing, Seashore, Specimen
Bloom season - June - September
Leaf / Flower color - Green / Bright blue
Cover seeds. Use successive sowing for continued blooms. Before last frost or autumn. Spacing 15 to 30 cm.
Germination time - 1-5 weeks. Ni light required for germination.
Temperature +15 to +21C.
Transplant annuals outdoors at the end of spring.
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