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Individual flower seed · Centaurea cyanus

Tall Blue Cornflower

The original cornflower blue.

Tall Blue Cornflower brings finely fringed blue flowers and an airy habit to sunny beds, informal borders, and cut arrangements. Also known as Bachelor’s Button, this cool-season annual pairs naturally with bold zinnias and lighter meadow flowers.

$5.95 · Packet · Approx. 400 seeds (2 g / 0.071 oz)1 oz covers approximately 250 sq ft at a broadcast sowing rate. Plant packets by the spacing in the directions below.Free U.S. shipping at $35+. Shipping details
Tall Blue Cornflower product image
Coverage1 oz covers approximately 250 sq ft at a broadcast sowing rate. Plant packets by the spacing in the directions below.
SunlightFull sun; well-drained soil.
When to PlantSow in early spring; fall sowing is suitable where winters are mild.

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Free U.S. shipping at $35+. Eligible lightweight orders under $35 can ship by Economy tracked mail for $2.95; other sub-$35 orders ship for $5.95. Use code BUMBLEBEES for 5% off when you buy 2 or more eligible non-packet ready-made seed items. The items may be the same or different. Seed packets, Seed Studio custom mixes and stickers do not qualify and are not discounted. Packets still count toward $35 free shipping. Product-specific discounts do not stack; the better discount applies.

Packet · Approx. 400 seeds (2 g / 0.071 oz)SKU: CCYA-PKT · Pure seed · no grass or filler
$5.95
1 ozSKU: CCYA-1OZ · Pure seed · no grass or filler
$12.95
Tall Blue Cornflower cover image
Product notes, planting guidance, and campaign imagery.

The flower collection

The original cornflower blue.

Tall Blue Cornflower brings finely fringed blue flowers and an airy habit to sunny beds, informal borders, and cut arrangements. Also known as Bachelor’s Button, this cool-season annual pairs naturally with bold zinnias and lighter meadow flowers.

  • Hardy annual · 28–36 inches.
  • Full sun · well-drained soil.
  • Sow 1/4 inch deep in prepared soil. Thin or transplant 8–10 inches apart.
  • Packet: 2 g, approximately 400 seeds. Counts vary by lot.

Tall Blue Cornflower

Centaurea cyanus

01

What to Expect

Let the planting develop.

28–36 inches tall. A hardy annual with late-spring and summer flowers, depending on sowing date and climate. Cut stems or remove faded blooms to prolong the display.

02

How to Plant

Prepare, sow, and press.

Before broadcasting, thoroughly mix this individual seed with dry sand, vermiculite, or another clean, dry carrier. A carrier is strongly recommended for most individual species and is especially important for small or lightweight seed. Sow 1/4 inch deep in prepared soil. Keep the surface evenly moist during germination, without waterlogging. Direct sow where plants will grow, water gently, and thin to 8–10 inches apart. Flowering favors cooler conditions and can finish before the warm-season zinnias.

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