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An image of the plant grown with seed for Cosmos Sea Shells Mix Seeds - Stunning Seashell Petal Flowers in Creamy Whites and Pinks, Perfect for Borders and Containers, Non-GMO
  • An image of the plant grown with seed for Cosmos Sea Shells Mix Seeds - Stunning Seashell Petal Flowers in Creamy Whites and Pinks, Perfect for Borders and Containers, Non-GMO
Cosmos Sea Shells Mix Seeds - Stunning Seashell Petal Flowers in Creamy Whites and Pinks, Perfect for Borders and Containers, Non-GMO
$4.99 CAD
Maturity

70 Days
Sunlight

Full Sun
Watering

Regular

Difficulty

Easy to grow
Life cycle

Annual
Grow Zones

2 - 10

Quick Reference

Zones

Plant Hardiness Zones describe the average minimum winter temperature for a region. They tell you where a plant can reliably survive outdoors. For example, Zone 5 can handle colder winters than Zone 9. Matching a plant to your zone increases the chance of long-term success.

Days

  • For food crops: Days to maturity is the expected number of days from planting to first harvest. This helps gardeners plan their growing season and time their harvests.
  • For non-food plants: Days to germination indicates how long it usually takes seeds to sprout under normal conditions. This is key for starting seeds successfully.

Types

  • F1 (Hybrid): A cross between two parent varieties. Hybrids are bred for vigor, uniformity, and specific traits such as disease resistance. Seeds saved from F1 plants don’t grow true to type. That means if you try to regrow them from seed, the plant won't necessarily be the same as last year's
  • OP (Open-Pollinated): Varieties that naturally pollinate and remain stable across generations. Seeds can be saved and replanted with consistent results.
  • HM (Heirloom): An open-pollinated variety that has been handed down for many generations. Heirlooms are valued for flavor, tradition, and genetic diversity.

Grows

  • Outdoors: Well-suited for garden beds, raised beds, or open soil, where natural conditions are stable.
  • Windowsill: Compact plants that thrive in containers indoors, often needing only modest light.
  • Anywhere: Highly adaptable plants that perform reliably in both indoor and outdoor settings.

Lifecycle

  • Annual: Grows, flowers, sets seed, and dies in one growing season. Many vegetables and flowers are annuals.
  • Perennial: Lives for multiple years, regrowing each season after going dormant. Often used in landscaping or long-term food crops.
  • Sp. Perennial (Self-Perennializing): A plant that reseeds itself or self-pollinates, giving the effect of perennial growth even if individual plants live shorter lives.

Size

Indicates the recommended container size or soil depth for best growth.

  • “X″ Pot”: The ideal pot diameter (e.g., 5″ Pot), ensuring enough root space.
  • DS (Deep Soil): Requires planting directly in the ground or in a deep raised bed, as shallow pots restrict growth.
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  • Unique Petal Formation: Each flower mimics the gentle roll of seashells, blooming in vivid shades of creamy white, pink, rose, and carmine.
  • Optimal Growing Conditions: Thrives in full sun and well-drained soil. Keep soil moist until seedlings appear, and avoid overly wet conditions to prevent rot.
  • Prompt Germination: Seeds sprout within 7-14 days at 70°F. Post-germination, a cooler environment of 55°F encourages healthier growth.
  • Versatile Culinary Uses: As the Cosmos are primarily ornamental, use their vibrant petals to garnish dishes and add color to salads.
  • Heightened Garden Aesthetic: Tall stems ranging from 36 to 48 inches create dynamic height and make these flowers ideal for lively garden borders and striking container displays.

Transform your garden with the elegant Cosmos Sea Shells Mix Seeds. These flowers boast uniquely curled petals reminiscent of delicate seashells, available in shades of creamy white, pink, rose, and carmine. Ideal for hobbyists and professional gardeners alike, these blooms add a touch of sophistication to any outdoor space.

Plant them in full sun and well-drained soil to enjoy their vibrant display from mid-summer to fall. Perfect for borders and containers, these tall, graceful flowers also serve as stunning additions to floral arrangements. Whether you’re seeking to enhance your garden’s aesthetic or add a splash of color to your culinary creations, Cosmos Sea Shells Mix is a versatile and beautiful choice.
Size
How much seed do I need?

Seeds per gram: 120
Average germination rate: 85%

Package sizes

  • 75 seeds — 64 plants — covers about 64–128 sq. ft.
  • 500 seeds — 425 plants — covers about 425–850 sq. ft.

Plant growth and coverage

  • Upright, airy, branching habit
  • Height: 90–120 cm (36–48 in)
  • Spread: 30–45 cm (12–18 in)
  • Spacing: 30–45 cm (12–18 in); allow about 1–2 sq. ft. per plant

Choosing a packet size

  • The 75-seed packet is ideal for home gardeners, small borders, and container groupings seeking a showy mid-summer display.
  • The 500-seed packet suits larger beds, community plantings, or market growers planning mass plantings and succession sowings.
GROWING INSTRUCTIONS

Sow Cosmos Sea Shells Mix seeds directly outdoors in well-drained soil after the last frost. Choose a sunny location and lightly cover the seeds with soil, keeping it moist until seedlings emerge.

To start indoors, plant seeds in pots 4 weeks before the last frost. Maintain a temperature of 70°F for germination, which typically occurs in 7-14 days. Once seedlings appear, move them to a cooler environment of around 55°F.

Transplant hardened-off seedlings outdoors, spacing them about 24 inches apart. Water regularly but avoid overwatering. Enjoy the vibrant blooms from mid-summer to fall, perfect for garden borders and arrangements.
SHIPPING & RETURNS

In Canada, we use fast shipping from our Canadian warehouses. You can expect delivery in 1-3 days.

In the USA, We use our US warehouses, and you can expect your order in 1-3 days, too.

No postaged lettermail or slow shipping from across the world. No customs fees or orders withheld at the border. Tracking numbers for all orders.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Our return policy covers you for late, damaged or defective products.

 Read Our Shipping & Returns Policy

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