Cosmos Seeds - Rosetta

Cosmos Seeds - Rosetta

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Packet $6.59
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  • No two of these striking streaked flowers is the same
  • Easy to grow annual
  • Open pollinated with long-lasting, white Summer blooms
  • Thrives in bright, sunny growing areas
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Life Cycle Annual
Planting Season Spring
Color Mixed
Growth Habit Clumping
Plant Height 36 inches
Bloom Season Summer through Fall

Plant Characteristics Attracts Bees, Attracts Butterflies, Attracts Hummingbirds, Attracts Pollinators, Easy to Grow & Maintain, Extended Bloom Time, Fast Growing
Use Container Garden, Cut Flower Garden
Growing Conditions Drought Tolerant, Heat Tolerant, Poor Soil Tolerant
Plant Resistance Deer

About Cosmos Seeds - Rosetta

Cosmos bipinnatus

Seed Type Open Pollinated Seed
Also known as Mexican Aster

Rosetta Cosmos aim to please with their daisy-like petals that dance atop lacy green foliage. These blooms strike a balance between delicate and stunning with cotton candy pink, white, and magenta-streaked petals sprouting from eye-catching golden yellow centers. Prolific is an understatement in describing their contribution to the garden; the more you cut them, the more they flower! Growing up to three feet tall, Rosetta Cosmos are early bloomers that make great border plantings flowering all the way through fall.

Planting Information

Planting Cosmos Seeds - Rosetta

Planting Season Spring
Seed Prep Requires Light
Sowing Method Direct Sow
Light Requirement Full Sun
Planting Depth 1/4 inch
Plant Spacing 12 inches
Plant Height 36 inches
Water Needs Low
Hardiness Zones 2, 3, 4, 5, 6, 7, 8, 9, 10
Days to Maturity 75 to 90 days
View our Cosmos Planting Guide to learn more.


Amount Avg Seed Count Recommended Coverage
Packet 50 Up to 80 Sq. Ft

Companions Plants

Companion Plants for Cosmos Seeds - Rosetta