Rare perennial Cosmos flower growing in a sunny home garden with rich maroon flowers.
Cosmos Atrosanguineus flower seeds for planting with velvet maroon blooms.
Heirloom non-GMO Cosmos Atrosanguineus seeds for ornamental garden planting.
Rare perennial Cosmos flower growing in a sunny home garden with rich maroon flowers.
Cosmos Atrosanguineus flower seeds for planting with velvet maroon blooms.
Heirloom non-GMO Cosmos Atrosanguineus seeds for ornamental garden planting.

Cosmos Atrosanguineus Flower Seeds for Planting – Heirloom & Non-GMO Rare Perennial Garden Flowers

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  • Estimated Delivery Sep 10 - Sep 14
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Rare perennial Cosmos flower growing in a sunny home garden with rich maroon flowers.

Cosmos Atrosanguineus Flower Seeds for Planting – Heirloom & Non-GMO Rare Perennial Garden Flowers

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Growing Tips & Guides

Details

Grow beautiful Cosmos Atrosanguineus with these heirloom, non-GMO flower seeds. Known for its rich velvet maroon blooms and elegant appearance, this perennial flowering plant adds lasting color and texture to flower beds, borders, cottage gardens, containers, and landscape plantings. A wonderful choice for gardeners looking to create a vibrant outdoor display throughout the blooming season.

Features

  • Heirloom and non-GMO Cosmos Atrosanguineus flower seeds.
  • Produces elegant velvet maroon blooms with ornamental appeal.
  • Suitable for garden beds, borders, containers, and patio planters.
  • Perennial flowering plant that adds long-lasting seasonal color.
  • Great for cottage gardens, pollinator-friendly landscapes, and decorative plantings.

Specifications

  • Product Type: Flower Seeds
  • Plant Name: Cosmos Atrosanguineus
  • Seed Type: Heirloom & Non-GMO
  • Plant Life Cycle: Perennial
  • Flower Color: Velvet Maroon
  • Growing Location: Garden Beds, Borders, Containers, Raised Beds
  • Light Requirement: Full Sun
  • Best For: Ornamental Gardens, Cottage Gardens, Landscape Planting, Patio Containers

Details

Plant care

How to plant your seeds

Follow these simple steps to give your seeds the best start.

  1. Prepare your soil & tray

    Fill trays or small pots with seed-starting mix. Press gently to settle—no need to pack tight.

  2. Sow seeds at the right depth

    Plant roughly 2–3× the seed’s width deep. Tiny seeds can be pressed lightly into the surface.

  3. Water & keep warm

    Mist or bottom-water. Cover until sprouting if the packet suggests it. Keep in a bright, warm spot.

Help

Frequently asked questions

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