• Cosmos Radiance seeds by Southern Seeds, 100 seeds of vibrant bipinnatus cosmos flowers for gardening and planting.
  • Radiance Cosmos seeds by Southern Seeds, showing vibrant pink and white cosmos bipinnatus flower seeds for planting.
  • Cosmos Radiance seeds by Southern Seeds, showing 100 vibrant cosmos bipinnatus flower seeds for gardening and planting.
  • Radiance Cosmos seeds by Southern Seeds, showing 100 vibrant cosmos bipinnatus flower seeds ready for planting.
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Southern Seeds

Radiance Cosmos – 100 Seeds

Radiance Cosmos – 100 Seeds

$1.99
$3.99 $1.99
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Bring a burst of vibrant, show-stopping color to your garden with Radiance Cosmos. An esteemed All-American Selections winner, this variety truly lives up to its name, producing large, brilliant blooms that command attention. The intricate petals display a stunning range of deep pinks and reds, creating a dazzling visual display all season long. Easy to grow and perfect for cutting, Radiance Cosmos will infuse your garden beds and bouquets with life and dramatic color.

⭐ What you'll love

  • Award-Winning Beauty: An All-American Selections (AAS) winner, recognized for its stunning performance.
  • Vibrant, Show-Stopping Color: Produces an abundance of large blooms in shades of deep pink and red.
  • Excellent for Bouquets: Long stems make it a perfect, long-lasting cut flower.
  • Attracts Pollinators: A favorite of bees and butterflies, bringing life to your garden.

🌿 Seed details

  • Plant Name: Radiance Cosmos (Cosmos bipinnatus)
  • Seed Quantity: Approx. 100 seeds
  • Type: AAS Winner, Heirloom, Non-GMO
  • Lifecycle: Annual
  • USDA Zone: 2-11
  • Origin: American Grown

🌱 Growing instructions

  • Sowing: Direct sow seeds outdoors after all danger of frost has passed.
  • Depth: Plant seeds 1/4 inch deep.
  • Spacing: Space plants 12-18 inches apart.
  • Light Requirement: Full Sun.
  • Soil: Thrives in average, well-draining soil.
  • Watering: Keep soil moist until germination (7-14 days); water regularly until established.
  • Care: Deadhead spent blooms to encourage continuous flowering throughout the season.

✅ Our seed packets

  • Professionally designed and made.
  • Resealable for convenient, long-term storage.
  • Eco-friendly and recyclable (contains no plastic).
  • Includes full, detailed growing instructions.
  • Vigorously tested to ensure the highest germination rates.
  • Custom packets for weddings, baby showers, or events are available. Just message us!

🚚 Shipping

  • FREE SHIPPING on all orders of $35 or more.
  • Flat Rate shipping no matter how many seeds you order.
  • Tracking is included with every order.
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Fast and free shipping on most orders $75+

We offer fast and free shipping on most orders over $75 and $8.99 under $75. Orders are typically processed within 1-2 business days and delivered within 3-5 business days unless specified. Expedited shipping options and all pricing options are available at checkout if applicable.

We accept returns within 30 days of purchase. Items must be unused and in original packaging. To initiate a return, please contact our customer service team. Refunds will be processed within 5-7 business days after we receive your return.

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