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Availability: In stock

Seeds Per Pack: 50

Centaurea cyanus
FLOWER-CORNFLOWER BOY BLUE is a large-flowered cornflower in classic bright blue. This is one of the prettiest wildflowers, & is used to populate entire fields with it’s an incredible color. A favorite annual, Blue Cornflower adds true blue blooms to the summer garden. Also known as Bachelor Button, silver foliage offsets its blue blooms tremendously and attracts birds with its seed. Blue Cornflower is extremely easy to grow and is gorgeous planted on its own or paired with other colors of Cornflower.

Cover seeds lightly & pat down, keep moist but not wet. Sow direct early spring or autumn.

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Scoville Heat Units (SHU)

Plant Height (cm)

30 - 90

Season of Interest


Temperature Range (°C)

15 - 25

Determine / Indeterminate

Annual / Perennial / Biennial


Frost Hardy / Tender


Full Sun / Part Sun / Shade

Full Sun

Sow Direct / Raise Seedlings

Sow Direct / Raise Seedlings


Well-drained soil of moderate fertility


6 - 7.5

Soil Temperature (°C)

10 - 20

Seed Preparation

No special preparation required

Sowing Depth (mm)


Plant Spacing (cm)

15 - 30

Row spacing (cm)

30 - 45


Regular watering

Germination Time (Days)

7 - 14

Harvest Time (Days)

Cut as desired for floral arrangements

Good Companion Plants

Blanket flower (Gaillardia spp.), Shasta daisy (Leucanthemum spp.), Lavender (Lavandula spp.), Russian sage (Perovskia atriplicifolia), Yarrow (Achillea spp.), Black-eyed Susan (Rudbeckia hirta), Phlox (Phlox paniculata), Marigold (Tagetes spp.)

Bad Companion Plants

Plants from the Brassica family (e.g., broccoli, cabbage), Legumes (e.g., beans, peas), Nightshades (e.g., tomatoes, peppers)



Powdery mildew, Rust, Fusarium wilt, Verticillium wilt, Leaf spot

More About Us

ABSeeds is an Australian owned business trading under the umbrella of Direct Compost Solutions which is owned and managed by Victoria Brun.

We as a company endeavor to provide to the public, Organic, Old Fashioned, Heritage, and Open-pollinated seeds that have not been genetically modified.

We purchased the business in November 2018 and renamed it to ABSeeds (All ‘Bout Seeds) to make the title shorter and represent what we hope to achieve with this business in the years ahead.

Seeds that we can’t grow ourselves we will acquire from people who grow for us, or we may purchase seeds from reputable heritage seed companies.

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