Cosmos Seeds - Seashells Cosmos bipinnatus
- Annual; Grows up to 30 Inches
- Uniquely shaped, tubular petals surrounding a yellow center
- Adaptable to both Sun and partial Shade
Shipping Schedule
Seeds are shipped year-round, while perennials & bulbs are shipped seasonally. Pre-ordered bulbs ship at the proper planting time for your zone. Spring pre-orders are placed any time before March 1. Fall pre-orders are placed any time before September 1. These items will not ship immediately, but will be delivered at the ideal time for planting. Orders containing both seeds and bulbs may be split into multiple shipments. Click here for more shipping information.
| Pre-Ordered Spring Bulbs & Perennials | Shipping Begins |
|---|---|
| Zones 9 - 12 | Late February to Early March |
| Zone 8 | Early to Mid March |
| Zone 7 | Mid to Late March |
| Zone 6 | Early April |
| Zone 5 | Late April |
| Zones 2 - 4 | Late April to Early May |
| In-season orders ship immediately at the time of purchase to all zones until inventory is depleted. | |
| Saffron Crocus & Bearded Iris | Shipping Begins |
| All Zones | Late August |
| Pre-Ordered Fall Bulbs | Shipping Begins |
| Zones 2 - 4 | Mid September |
| Zone 5 | Mid to Late September |
| Zone 6 | Late September |
| Zone 7 | Late September to Early October |
| Zones 8 - 12 | Early to Mid October |
| In-season orders ship immediately at the time of purchase to all zones until inventory is depleted. | |
| Pre-Ordered Fall Perennials* | Shipping Begins |
| All Zones | Mid October |
| *Amaryllis Bulbs, Hosta Roots, Lily Bulbs, Papaver Roots, Paperwhite Bulbs, Peony Roots & Siberian Iris Roots | |
Product Description
Cosmos Seeds - "Seashells"
If you desire the exotic, then Seashells are the cosmos seeds for you! The unique petals of this cosmos are shaped like tubed seashells—hence their name. Seashell cosmoses come in pastel shades of pink, rose, carmine and white; plus, they attract birds, bees and butterflies! Their tall stems reach 3 to 5 feet and have ferny leaves. The striking yet easy to grow Seashell cosmos flowers are the perfect choice for those looking to go off the beaten garden path!
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Fast Facts
Name: Cosmos Seeds - Seashells Botanical Name: Cosmos bipinnatus Life Cycle: Annual Light Requirement: Full Sun Planting Season: Spring Plant Type: Tubular Petals Surrounding a Yellow Center, Pinnatisect Leaf Shape Features: Open Pollinated, Attracts Pollinators, Easy to Grow & Maintain, Fast Growing, Poor Soil Tolerant, Extended Bloom Time, Cut Flower Garden Color: Pink, White, Red Blooms: Summer, Late Summer, Early Fall, Fall Days to Maturity: 60-90 Days Plant Height: 32 inches Plant Spacing: 9-12 inches Planting Depth: 1/4 inch Sowing Method: Direct Sow Cold Stratification: No Seeds per Pound: 68, 000 Hardiness Zones: 2, 3, 4, 5, 6, 7, 8, 9, 10 Ships: Year Round -
Planting Instructions
How to Plant & Grow Cosmos Flowers from Seeds
This Mexico native is one of the simplest flowers to grow, and they are suitable for all zones. Since they reseed themselves easily, they make perfect additions to wildflower meadows or naturalized areas. Children will love planting their cosmos seeds and watching them grow taller than they are!
Sow your Cosmos seeds in the full sun to partial shade. As cosmos flowers are very adaptable, they can thrive in average to poor soil quality, and they are tolerant to dry conditions. Scatter cosmos seeds outdoors after there is no longer a danger for frost. Seeds can be covered ¼ inch since they do not need light to germinate. Germination will usually occur in just 3 to 5 days, but it can take up to 2 weeks.
Once started, cosmoses require virtually no attention. You can add a general purpose fertilizer once or twice a season. If a plant grows very tall and is not planted in a wind protected area, it may require staking. If you want blooms all summer long, dead head the old blooms.
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Seed Coverage
Amount Recommended Coverage Packet Up to 80 Sq. Ft Ounce Package Up to 625 Sq. Ft 1/4 Pound Package Up to 2,500 Sq. Ft 1 Pound Sack Up to10,000 Sq. Ft 5 Pound Sack Up to 1.3 Acres
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Product Reviews
Review
Very unusual
Planted in spring 2018 in zone 8; they bloomed earlier than the other cosmos varieties I planted, which was nice. They are very delicate and unusual. Will order more for this year.
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Cosmos Seeds - Seashells Cosmos bipinnatus
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