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Item Number: AA006

Centaurea cyanus - Blue Diadem

Bachelor's Buttons, Cornflower

Vivid Blue Blooms Great for Pollinator-Friendly Gardens

How hard is it to find old-fashioned TALL "Bachelor Buttons" these days? Unless you grow them from seed, you'll probably only find those squatty ones sprayed with dwarfing chemicals that will never look as charming as these! Bright, richest blue, 2.5" wide, edible blooms on upright 3' branched stems is what you want and our favorite, 'Blue Diadem,' truly delivers! Perfect mid-bed, it makes the sweetest cut flowers. Rich soil is best, kiddies. To 1' wide. Dead-head to prolong flowering, and you'll have blooms Spring and Summer. Self-sows - woo-hoo!

  • Plant type: Flowering
  • Pot Size: 4-inch
  • Life Span: Annuals
  • Flower Colors: Blue-Purple
  • Bloom Time: Spring
  • Zones: Zone 1–11
  • Sun Exposure: Part Sun
  • Water needs: Regular Water

Explore more beautiful annual plants in our Annie's Annuals - Annual Plants Collection to find companion varieties that pair perfectly with your Bachelor Buttons.

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Available to Ship After: 9/26/2025
$10.95
/each
Satisfaction guaranteed shipping

Check Your Zone Compatibility:

Shipping Information

Ships from Northern CA.

Cannot ship to the following states: AK, HI, GU, PR, VI

Shipping Weight: 1.1 lb

Features

  • Attracts Bees / Bee Plants
  • Attracts Butterflies
  • Beginner
  • Deer Resistant
  • Drought Tolerant
  • Easy Reseeders
  • Edible & Useful
  • Good for Pollinators & Wildlife
  • True Blue
  • Under Oaks

Characteristics

USDA Growing Zone: 1 - 11
Bloom Season : Spring
Bloom Season : Summer
Flower Color : Blue-Purple
Life Cycle : Annual
Plant Usage : Hot & Dry Climates
Plant Usage : Plants for Cutting
Sun Requirements : Part Sun
Sun Requirements : Sun
Water Requirements : Regular Water

Use Instructions

Useful Information

Guarantee

We guarantee the perishable items we sell to be in good, viable condition when we sell them. Perishable items include, but are not limited to, garlic bulbs, flower bulbs, seed potatoes, onion sets & transplants, potted or bare root trees, vegetable crowns, etc. If your perishable item arrives in substandard condition, take photographs and please contact us within 3 days of the purchase date (or delivery date) and we will provide you with a refund of the purchase price (excluding shipping costs), or a replacement. Accordingly, we urge you to open any boxes marked as ""Perishable"" immediately upon receiving them and inspect the shipment thoroughly (do not crack open heads of garlic, we do not accept claims on cracked garlic). Because some perishable items can deteriorate very quickly, we cannot accept any claims beyond the 3-day time frame as it becomes too difficult to determine if these items were delivered in substandard condition, or if they turned into such substandard condition because of having been improperly cared for or stored once delivered.

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