Sensation Cosmos Mix Seeds — 2-second swaying plant cover

Sensation Cosmos Mix Seeds - plant detail

Sensation Cosmos Mix Seeds - garden view

Sensation Cosmos Mix Seeds

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Grow Guides

About the Variety

Sensation cosmos combines airy foliage with pink, red, and white flowers for relaxed borders and bouquets. Sow after frost in full sun, where the airy stems can move freely.

Airy foliage beneath open daisy-like blooms
Tall stems suit informal cutting
Mixed colors for a loose garden look

Key Features

Airy Growth
Cut Flower
Attracts Pollinators
Sunny Borders

Plant Details

Botanical Name	Cosmos bipinnatus
Life Cycle	Annual
Seed Type	Open-pollinated (reference; supplier confirmation needed)
Light Requirement	Full sun
Bloom Season	Summer through fall
Growth Habit	Tall, branching
Plant Height	Approx. 40–84 in
Plant Type	Open, daisy-like flowers
Color	Pink, red, and white mix

Planting Information

Planting Season	After frost in the warm season
Sowing Method	Direct sow outdoors in full sun after the last frost. For earlier blooms, start seeds indoors 4–6 weeks before the last frost and transplant after hardening off.
Planting Depth	Sow approximately ¼ inch (6 mm) deep. Cover seeds lightly with soil; avoid burying them too deeply.
Water Needs	Water during establishment; avoid waterlogged soil
Plant Spacing	Thin seedlings to approximately 9–12 inches (23–30 cm) apart. Allow additional space for larger plants when needed.
Hardiness Zones	Frost-tender annual; suitable for growing during the frost-free season in most USDA hardiness zones.
Germination	Typically 7–10 days at 68–72°F (20–22°C) under favorable conditions. Germination may take longer in cooler soil.
Seed Prep	No soaking or cold stratification required. Sow shallowly, maintain consistent moisture, and avoid excessive soil coverage.

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FAQs

How do you ship?

Seeds ship after a handling period of 3-5 business days, with most orders arriving within 10-15 business days from there.
Once your order leaves our warehouse, you'll receive a shipping confirmation email with tracking — so you know exactly where things stand.

Are your products GMO?

All of our seedsare non-GMO. We've made that commitment as our Safe Seed Pledge.

Are your seeds treated?

Most of our seeds are untreated. Some varieties are coated with a fungicidal treatment to support germination and early establishment, particularly in challenging growing conditions. If a variety has been treated, it will be clearly noted on the product page and packaging.

How Should I Store Unused Seeds?

Our recommendation is to buy for the season you're planting. But if you have seed left over, proper storage keeps it viable longer than most people expect.

To store unused seeds:

1. Seal them in an airtight container or plastic bag to protect against moisture and insects
2. Keep them somewhere cool, dark, and dry — away from sunlight and humidity
3. Skip the refrigerator; fluctuating moisture is harder on seed than temperature

Stored well, most seeds hold through the following growing season with excellent results. Our seeds typically lose less than 5% of their viability per year under ideal conditions.

Not sure if older seed is still good? A quick germination test will tell you:

Moisten a paper towel, place 10 seeds on one half, fold it over, and seal it in a plastic bag or airtight container. Keep it in a warm location appropriate for the variety, and check periodically over the seed's normal germination period. Count how many sprout — 8 of 10 means roughly 80% viability. If the rate is low, you can often compensate by sowing more thickly. Just keep in mind this measures viability under ideal conditions, so actual garden performance can vary with soil, moisture, and weather.