• Person holding a bouquet of pink rosetta cosmos flowers in a natural setting
  • Person holding a bouquet of pink rosetta cosmos flowers in a natural setting
  • A close-up image of a rosetta Cosmos flower with pink, white, and magenta-streaked around a golden yellow center, set against a blurred background of similar flowers.
  • Field of rosetta cosmos with green and orange in the background
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Cosmos Seeds - Rosetta

No two of these striking streaked flowers is the same

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About the Variety

Up to 44% off

Key Features

Heat Tolerant
Drought Tolerant
Prefers Lean Soil
Container Friendly
Attracts Bees
Attracts Butterflies
Fast Growing
Easy to Grow
Perfect for Cut Flowers
Perfect for Borders
Deer Resistant
Rabbit Resistant

Plant Details

BOTANICAL NAME

Cosmos bipinnatus

LIFE CYCLE

  • Annual

SEED TYPE

  • Open Pollinated Seed

LIGHT REQUIREMENT

  • Full Sun

BLOOM SEASON

  • Summer through Fall

DAYS TO MATURITY

  • 75 to 90 days

GROWTH HABIT

  • Clumping

PLANT HEIGHT

  • 36 inches

COLOR

  • Mixed

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.

  • • Easy to grow annual
  • • Open pollinated with long-lasting, white Summer blooms
  • • Thrives in bright, sunny growing areas

Planting Information

PLANTING SEASON

  • Spring

SOWING METHOD

  • Direct Sow

PLANTING DEPTH

  • 1/4 inch

WATER NEEDS

  • Low

PLANT SPACING

  • 12 inches

HARDINESS ZONES

  • N/A - Annual

SEED PREP

  • Requires Light

COVERAGE

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

Planting Guide

View our Cosmos Planting Guide to learn more.

Ready to Grow

We guarantee that our seeds & bulbs will be true to type and ready to thrive. If something doesn't grow as expected, we will make it right. Questions? Call us at 855-440-2929

All cosmos
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    Cosmos Seeds - Rosetta FAQs

    What is Rosetta Cosmos also known as?

    Rosetta Cosmos is also known as Mexican Aster.

    Is Rosetta Cosmos resistant to animals or disease?

    Rosetta Cosmos is deer resistant, meaning deer generally avoid it due to its taste, texture, or aroma.

    Customer Reviews

    Overall rating: 3.0 / 5 from 2 reviews.

    None of these came up.

    Kathy A. 1/5 Verified

    Cosmos Seeds - Rosetta

    Store owner replied: Hello, Kathy Thank you for your review of Eden Brothers! We greatly appreciate you bringing this to our attention. It's so important to have feedback like this so we can continually improve our products and processes. After speaking with our Customer Service Team, it seems we were able to resolve this for you. Thanks for your time in sharing your experience with us!

    Even though the growing season is over, I started a couple by the window sill and they're doing great so far. I can't wait until next summer to start these outside.

    Meadow 5/5 Verified

    Cosmos Seeds - Rosetta

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