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Cosmos Seeds - Radiance Cosmos bipinnatus

Buy Cosmos Seeds by the Packet or in Bulk!

Unit Size Unit Price Savings Qty
Packet $3.95
1 Ounce Package $9.50
1/4 Pound Package $23.95 37% Notify Me
1 Pound Sack $52.95 65% Notify Me
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  • Annual; Grows up to 44 Inches
  • A vigorous, versatile and resilient wildflower
  • Adaptable to both Sun and partial Shade

Product Description

Cosmos Seeds - "Radiance"

Radiance Cosmos seeds produce the classic cosmos that everyone adores. The deep, wine red of the petals pairs beautifully with the yellow center. The Radiance Cosmos, like all other cosmoses, is simple to grow; even novice gardeners will have no trouble growing these 3 to 5 foot beauties. Order your seeds today, and in mid-summer, you'll be beaming with pride at the blooms on your Radiance Cosmos flowers!

  • Fast Facts

    Name:Cosmos Seeds - Radiance
    Botanical Name:Cosmos bipinnatus
    Life Cycle:Annual
    Light Requirement:Full Sun
    Planting Season:Spring
    Plant Type:2-4-inch Saucer-Shaped Daisy-like Blooms, Fern-Like 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
    Blooms:Summer, Late Summer, Early Fall, Fall
    Days to Maturity:60-90 Days
    Plant Height:44-60 inches
    Plant Spacing:9-12 inches
    Planting Depth:1/4 inch
    Sowing Method:Direct Sow
    Cold Stratification:No
    Seeds per Packet:900 mg
    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.

  • Planting Video

  • Seed Coverage

    AmountRecommended Coverage
      
    PacketUp to 80 Sq. Ft
    Ounce PackageUp to 625 Sq. Ft
    1/4 Pound PackageUp to 2,500 Sq. Ft
    1 Pound SackUp to10,000 Sq. Ft
    5 Pound SackUp to 1.3 Acres

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