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Blue boy seeds

Blue Boy

West Coast Seeds ships anywhere in North America. However, we are not able to ship garlic, potatoes, asparagus crowns, bulbs, onion sets, Mason bee cocoons, or nematodes outside of Canada. We regret, we cannot accept returns or damages for orders outside of Canada. The minimum shipping charge to the US is $6.99.

West Coast Seeds ships anywhere in North America. However, we are not able to ship garlic, potatoes, asparagus crowns, bulbs, onion sets, Mason bee cocoons, or nematodes outside of Canada. We regret, we cannot accept returns or damages for orders outside of Canada. The minimum shipping charge to the US is $6.99.

More details about Blue Boy

Centaurea cyanus. Centaurea are also known as Bachelor’s Buttons. These familiar, charming, brightly-coloured pompoms on fuzzy grey stems, are well loved by humans and attractive to beneficial hover-flies. Blue Boy is at home in borders, with herbs, or in the kitchen garden. Direct sow Blue Boy cornflower seeds at repeated intervals in April to June to extend bloom. Centaurea can also be planted in October on the Coast. Blue Boy has the traditional vivid blue blossoms, tall growing for masses of cut flowers. Centaurea flowers also dry particularly well. Tear fresh flower petals for use in salads, teas, or fancy drinks. Plant height 90cm (36″). It is drought tolerant once established, so good for xeriscaping.

Quick Facts:

    • Annual
    • Edible flowers
    • Tall growing for cut flowers.
    • Bright blue on fuzzy grey stems
    • Plant height 90cm (36″)

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    Blue Boy

    All About Blue Boy

    Latin

    Latin
    Centaurea cyanus
    Family: Asteraceae

    Difficulty

    Difficulty
    Very easy

    Season & Zone

    Season & Zone
    Exposure: Full sun

    Timing

    Timing
    Direct sow starting just before last frost, and again every two weeks until end of spring. Centaurea can be direct sown in autumn as well. Starting indoors is not necessary, but can be accomplished by keeping seed trays in the dark at the optimal soil temperature of 15-21°C (60-70°F). Move under bright lights once germination occurs, and transplant out in late spring, after all risk of frost has passed.

    Starting

    Starting
    Just cover the small seeds. Thin or space to 15-30cm (6-12″) apart.

    Growing

    Growing
    We acknowledge that Centaurea cyanus sometimes appears on lists of invasive species. In our experience, for the back yard or balcony gardener, this is not an issue, and the plants are easily controlled. They are short rooted, and can be pulled up with little effort. Unlike some plants, its seeds simply drop locally if allowed to mature, and do not eject, and they do not spread by underground rhizome. We respectfully ask that gardeners who live in threatened or sensitive ecosystems take this into consideration when planting Centaurea, just like any other type of seed.

    How to Grow Cornflowers

    Step 1: Timing

    Direct sow starting just before last frost, and again every two weeks until end of spring. Centaurea can be direct sown in autumn as well. Starting indoors is not necessary, but can be accomplished by keeping seed trays in the dark at the optimal soil temperature of 15-21°C (60-70°F). Move under bright lights once germination occurs, and transplant out in late spring, after all risk of frost has passed.

    Step 2: Starting

    Just cover the small seeds. Thin or space to 15-30cm (6-12″) apart.

    Step 3: Growing

    We acknowledge that Centaurea cyanus sometimes appears on lists of invasive species. In our experience, for the back yard or balcony gardener, this is not an issue, and the plants are easily controlled. They are short rooted, and can be pulled up with little effort. Unlike some plants, its seeds simply drop locally if allowed to mature, and do not eject, and they do not spread by underground rhizome. We respectfully ask that gardeners who live in threatened or sensitive ecosystems take this into consideration when planting Centaurea, just like any other type of seed.

    Blue Boy Bachelor’s Button

    Annual. Named for the centaurs of Greek mythology. Easy to grow, great for cutflowers and beds. Common name may refer to the tight unopened buds’ resemblance to buttons or to their popularity as boutonnieres. Also known as Cornflower and, formerly, Hurt-Sickle because its wiry stems dulled many a sickle during mowing time.

    Culture: Start indoors at 60–65° 2 months before setting out, or direct seed in May in a sunny location. Deadhead for persistent blooms, or make a succession planting in mid-late June if you desire late-summer flowering. Will self-sow. Lasts longer than most flowers after frost. Excellent drought resistance. Cut when flowers are just beginning to open—they’ll open more in the vase and last 6–10 days. 3′. ~180 seeds/g. Cannot ship to Alaska.

    Flowers

    All flowers are open-pollinated except where noted.

    Days in parentheses after a variety indicate days to first bloom.

    Germination Testing

    For the latest results of our germination tests, please see the germination page.

    Warehouse Hours
    Tuesday–Thursday 9AM–3PM.
    Organic Growers Supply: open for shopping and order pickup.
    Fedco Seeds & Fedco Trees: closed to the public.
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