Go to content

Main menu:

Plant Collection > Centaurea cyanus
Cornflower (Centaurea Cyanus)

donates to support the development of this site
(if you donate 10 dollars or more ... you will receive a small selection of seeds for the bees)

Cornflower is a short-lived annual that can be found growing in northern temperate regions across the globe. Its rich color blooms are thistle-like in appearance and appear atop tall stems. In thsi mix many cornflower cultivars with flowers in shades of blue, purple, pink or white.
Genus - Centaurea Species - Cyanus Variety - mix Common name - Cornflower Germination rate - 90% Pre-Treatment - Not-required Plant type - Annual, Fragrant Vegetation type - Deciduous Hardiness zones - 3 - 10 Exposure - Full Sun, Partial Sun Height - 1-3' / 0,30 - 0,90 m Spread - 1-2' / 0,30 - 0,60 m Growth rate - Fast Bloom season - June - August Leaf / Flower color - Sea Green, Gray Green / Blue, purple, pink or white Soil PH - Acidic, Neutral, Alkaline Soil type - Clay, Loam, Sand, well drained Water requirements - Drought Tolerant, Average Water Landscape uses - Cutflower, Mixed Border, Wildflower

GERMINATION INSTRUCTIONS : Sowing Direct : Sow thinly, 3mm (1/8in) deep in drills 30cm (12in) apart in wellcultivated soil which has been raked to a fine tilth. Water ground regularly, especially in dry periods.

When large enough to handle, thin out seedlings to 15cm (6in) apart
Sowing Indoors: Sow in pots or trays of moist seed compost and cover with a very fine sprinkling of compost or vermiculite. After sowing, do not exclude light as this helps germination. Keep at 15-20°C (59-68°F). Keep the surface of the compost moist but not waterlogged. Germination will usually take 14-21 days. When they are large enough to handle, transplant the seedlings into 7cm (3in) pots or trays. Overwinter plants in cool, light, frost-free conditions before planting out the following spring, or grow on as greenhouse pot plants.

Back to content | Back to main menu