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Sensation Mixed Colors

Scientific name Cosmos bipinnatus

About this variety

Sensation Mixed Colors Garden cosmos seeds produce mixed bloom on 37–48 in upright/erect plants. Annual growth and Summer/Fall bloom make it useful for meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Sensation Mixed Colors carries large, daisy-like pink, rose, carmine, and white flowers above airy, fern-like foliage.About Sensation Mixed ColorsSensation Mixed Colors is an annual garden...

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At a glance

The facts most gardeners need first

View the full variety record
40 minimum seeds per packet
  • Germination7-14 Days days · 65–80 °F
  • First bloom / maturity70-79 Days · 70-79 Days from sowing to the primary bloom or market stage used for the listed maturity range
  • SunFull sun
  • Support & spacingNo-Support · space 12 in · rows 18 in
  • Growth habitUpright/Erect · Annual · 37–48 in tall
  • Best useMeadow-style color, cut flowers, low-input sunny beds, and pollinator use
Secure checkout Details
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Triple-tested seed qualityRegular quality and germination checks support every packet.

We regularly test seed quality and germination as lots move through storage and packing. We stand behind the seed we send and want customers to contact us when a packet does not perform as reasonably expected.

1-year seed warrantyCoverage begins on the date of purchase.

When properly stored, planted, and cared for, we guarantee reasonable germination and true-to-type growth for one year from the date of purchase. Conditions outside our control—including extreme weather, pests, unsuitable storage, and gardener error—are excluded. Contact us when something is not right so we can review the situation and work toward a replacement, refund, or another fair resolution.

Non-GMO / BE seed policyWe do not buy or sell genetically engineered or bioengineered seed.

Every seed variety we sell is non-GMO.

USDA’s National Bioengineered Food Disclosure Standard defines bioengineered foods as containing detectable genetic material modified through in vitro recombinant DNA methods in ways not achievable through conventional breeding or found in nature.

  • Hybrid means parent lines were conventionally crossed; hybrid does not mean GMO.
  • Heirloom and open-pollinated describe how a variety is maintained and reproduced.
  • Organic certification is separate and is shown only when verified for the individual product.
Packed in Colerain, North CarolinaPrepared in our seed room for gardens across the country.

Seeds are packed and shipped from Colerain, North Carolina. Our packets use forestry-certified paper, and we use recyclable paper mailers where appropriate. AONSK is also a 1% for the Planet partner while continuing to reduce waste in packing and fulfillment.

Seed-starting profileDifficulty, preparation, reliability, and timing Open

Seed success profile

Gardener experience Beginner
Germination difficulty Easy
Preparation before sowing
Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.
Germination speed
7-14 Days
Growing complexity
Easy
Patience and timing
70-79 Days
Is this seed a good match for your experience?
Expected germination
7-14 Days
Germination temperature
65–80 °F
Stratification
None required
Scarification
None required
Pre-soaking
None required
Light during germination
Cover evenly to the listed depth
Germination pattern
Best when the seed zone stays near 65–80 °F with steady moisture and airflow.
Transplant sensitivity
Low to moderate; direct sow when practical or transplant before plants become root-bound.
Starting method
Cataloged as suitable for direct sowing; follow the product-specific timing and depth.
Best chance of success
Use 65–80 °F and 1/4 in depth; maintain steady moisture until emergence in 7-14 Days.
Planning window

Plan around 7-14 Daysat65–80 °F. Keep moisture, light, and preparation aligned with the sowing instructions below.

Slow germination is not automatically failed germination.

Maintain the listed temperature, moisture, light, and treatment conditions for the full expected window. Some seed lots emerge gradually rather than all at once.

1 Beginner-friendly 2 One extra step 3 Some experience helpful 4 Patient growers 5 Advanced propagation

Seed age, storage, sowing depth, moisture, temperature, light, local conditions, and aftercare can affect results. Last reviewed August 2026.

Garden tools

Need a plan for your space?

Open the garden-fit planner or soil calculator only when you need them.

Open garden tools Uses this product’s recorded growing information. Local weather and garden conditions may vary.

About this variety

What to expect from Sensation Mixed Colors

Sensation Mixed Colors Garden cosmos seeds produce mixed bloom on 37–48 in upright/erect plants. Annual growth and Summer/Fall bloom make it useful for meadow-style color, cut flowers, low-input sunny beds, and pollinator use.

Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record

Sensation Mixed Colors Garden cosmos seeds produce mixed bloom on 37–48 in upright/erect plants. Annual growth and Summer/Fall bloom make it useful for meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Sensation Mixed Colors carries large, daisy-like pink, rose, carmine, and white flowers above airy, fern-like foliage.

About Sensation Mixed Colors

Sensation Mixed Colors is an annual garden cosmos with mixed color, 37–48 in mature height or spread, and an upright/erect habit. Harvest form or size: Flower or head form characteristic of Sensation Mixed Colors; mature plant 37–48 in. Botanically it is Cosmos bipinnatus. Maturity or first bloom: 70-79 Days; germination: 7-14 Days at 65–80 °F. Best for meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Grown for ornamental or habitat use rather than as a food crop.

History and provenance

Garden cosmos and sulphur cosmos come from Mexico and neighboring parts of the Americas. They became widely grown annual flowers because direct-sown plants flower freely in sun and modest soil. Cultivar names distinguish color, stature, and petal form, but available evidence does not assign a breeder or release date where the public record is incomplete. A complete public breeder or release record for the named Sensation Mixed Colors strain has not been located. The cultivar name is retained, but no person, community, date, or place of origin is assigned without reliable documentation.

Growing facts

Scientific name Cosmos bipinnatus
Life cycle Annual
Maturity / first bloom 70-79 Days
Germination 7-14 Days at 65–80 °F
Seed depth 1/4 in
Plant height / spread 37–48 in
Growth habit Upright/Erect
Spacing 12 in between plants; 18 in between rows
Sunlight Full sun
Soil Loamy; pH 6.0–6.5
Water Drought tolerant
Support No-Support

Starting Sensation Mixed Colors from seed

How to grow Sensation Mixed Colors Garden cosmos

Botanical identity: Cosmos bipinnatus. Life cycle: Annual.

Sow 1/4 in and use a seed-zone temperature near 65–80 °F. Expected emergence: 7-14 Days. Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.

Plant during Late Spring. Space plants 12 in apart with 18 in between rows or planting bands.

Provide Full sun, drought tolerant water, and loamy near pH 6.0–6.5. Support: No-Support.

Garden performance and care

For a longer display of Sensation Mixed Colors, remove spent blooms unless seed is being saved. Give the plant its listed spacing, cut flowers with clean tools, and leave selected heads to mature fully for seed. Expected emergence is 7-14 Days; the listed maturity or bloom timing is 70-79 Days.

Harvest, bloom, and uses

Sensation Mixed Colors is suited to meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Its mixed flowers and 37–48 in stature help determine whether it belongs in a border, cutting row, container, meadow edge, or restoration-style planting. Grown for ornamental or habitat use rather than as a food crop.

Saving seed

Sensation Mixed Colors contains more than one genetic line or species. Seed collected from the planting will not reproduce the original packet proportions. If saving seed, identify species separately, prevent unwanted crossing where possible, harvest only fully mature seed, dry thoroughly, and label each lot by species, year, and source.

Common problems

Common concerns: damping-off from saturated media; poor emergence from wrong temperature or depth; leggy seedlings from weak light; crowding and weak airflow; lodging in wind or rain; feeding damage from slugs, caterpillars, beetles, or mammals; foliar disease under prolonged leaf wetness. Management: use clean media, the sowing depth and temperature, strong light, appropriate thinning, and morning irrigation at soil level. Match support to plant height before wind becomes a problem. Inspect regularly and use the least disruptive control appropriate to the pest, plant, and pollinator setting. Remove diseased debris and rotate annual flower beds where recurring disease is severe.

Frequently asked questions

When is Sensation Mixed Colors ready?

70-79 Days from sowing to the primary bloom or market stage used for the listed maturity range

How long does germination take?

Expect 7-14 Days near 65–80 °F; actual emergence changes with moisture, seed condition, and soil temperature.

How large does it grow?

About 37–48 in with an upright/erect habit. Support: No-Support.

Can it grow in a container?

Possible in a large container, raised bed, or in-ground planting with room for the mature plant

How is it used?

Primary role: Meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Grown for ornamental or habitat use rather than as a food crop.

Can I save seed?

Yes where the crop biology allows, but keep compatible varieties isolated, use several healthy plants, wait for full seed maturity, dry thoroughly, and label the lot.

Minimum Seed Count: 40 seeds

Additional variety overview

Sensation Mixed Colors is an annual garden cosmos with mixed color, 37–48 in mature height or spread, and an upright/erect habit. Harvest form or size: Flower or head form characteristic of Sensation Mixed Colors; mature plant 37–48 in. Botanically it is Cosmos bipinnatus. Maturity or first bloom: 70-79 Days; germination: 7-14 Days at 65–80 °F. Best for meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Grown for ornamental or habitat use rather than as a food crop.

Additional catalog details

Sensation Mixed Colors Garden cosmos seeds produce mixed bloom on 37–48 in upright/erect plants. Annual growth and Summer/Fall bloom make it useful for meadow-style color, cut flowers, low-input sunny beds, and pollinator use.
View all growing and care factsBotanical identity, timing, climate, soil, spacing, mature size, and crop-specific details

Plant identity

Minimum seed count 40 seeds
Seed product profile Flower seed
Scientific name Cosmos bipinnatus
Common name Garden cosmos
Cultivar or variety Sensation Mixed Colors
Also known as Garden cosmos, Sensation Mixed Colors, Cosmos Seeds - Sensation Mixed Color Cosmos
Color Mixed
Life cycle Annual
Botanical family Asteraceae
Reproductive type Open-Pollinated (OP)
Heritage qualifiers Non-GMO
Native to the United States Domesticated Plant
Domestication note Mesoamerica (Mexico–Central America)

Seed success and gardener experience

Gardener experience BeginnerLevel 1 of 5
Germination difficulty EasyLevel 1 of 5
Preparation before sowing Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.
Stratification None required
Scarification None required
Pre-soaking None required
Light during germination Cover evenly to the listed depth
Germination pattern Best when the seed zone stays near 65–80 °F with steady moisture and airflow.
Growing complexity Easy
Transplant sensitivity Low to moderate; direct sow when practical or transplant before plants become root-bound.
First harvest or bloom 70-79 Days
Best chance of success Use 65–80 °F and 1/4 in depth; maintain steady moisture until emergence in 7-14 Days.

Timing and climate

Days to maturity 70-79 Days
Germination 7-14 Days
Germination temperature 65–80 °F
Planting season Late Spring
Bloom season Summer/Fall
Frost tolerance Tender
Sunlight Full sun
Water needs Drought tolerant

Site, soil, and space

Soil type Loamy
Preferred soil pH 6.0–6.5
Seed depth 1/4 in
Plant spacing 12 in
Row spacing 18 in
Mature height 37–48 in
Growth habit Upright/Erect
Support needed No-Support
Suitable growing locations In-ground bed, Raised bed, Containers, Community garden

Crop-specific details

Fruit size Flower or head form characteristic of Sensation Mixed Colors; mature plant 37–48 in
Flavor profile Grown for ornamental or habitat use rather than as a food crop.
Garden toolsOpen the garden-fit planner, planting-window questions, or soil calculator only when useful

Uses this product’s recorded growing information. Local weather, soil, and garden conditions may vary.

Garden-fit planning for this variety

Will Sensation Mixed Colors fit your garden?

Use your space, timing, light, soil, water, and growing preferences to make a more informed choice.

Questions for this garden seed
Seed-starting fit and patience
Recorded product profileBeginnerEasyRead why
Soil test, pH, drainage, and amendment calculator Have a laboratory soil report? Enter pH, nutrients, texture, bed size, and site observations here. Open soil tools
Recorded soil typeLoamy
Recorded pH range6.0–6.5
Water needsDrought tolerant
LightFull sun

Use a current laboratory soil test

Soil-test interpreter

Compare your report with this product's listed pH target: 6.0–6.5.

This tool interprets values you enter; it does not replace laboratory or Cooperative Extension amendment rates. Soil test methods and nutrient recommendations vary by region.

Full growing record

Open only the section you need

How to start Sensation Mixed Colors from seedPreparation, timing, depth, germination, transplanting, spacing, and early care

Recorded germination plan

Expected germination
7-14 Days
Germination temperature
65–80 °F

Complete sowing and planting guidance

How to grow Sensation Mixed Colors Garden cosmos

Botanical identity: Cosmos bipinnatus. Life cycle: Annual.

Sow 1/4 in and use a seed-zone temperature near 65–80 °F. Expected emergence: 7-14 Days. Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.

Plant during Late Spring. Space plants 12 in apart with 18 in between rows or planting bands.

Provide Full sun, drought tolerant water, and loamy near pH 6.0–6.5. Support: No-Support.

Additional planting instructions

How to grow Sensation Mixed Colors Garden cosmos

Botanical identity: Cosmos bipinnatus. Life cycle: Annual.

Sow 1/4 in and use a seed-zone temperature near 65–80 °F. Expected emergence: 7-14 Days. Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.

Plant during Late Spring. Space plants 12 in apart with 18 in between rows or planting bands.

Provide Full sun, drought tolerant water, and loamy near pH 6.0–6.5. Support: No-Support.

Additional planting information

Sow 1/4 in at 65–80 °F; expect 7-14 Days. Space plants 12 in apart with 18 in between rows. Provide Full sun, loamy near pH 6.0–6.5, and drought tolerant water. Support: No-Support. Maturity or first bloom: 70-79 Days.
How to grow this specific varietyLight, water, fertility, support, spacing, airflow, crop behavior, and season-long care

Variety-specific growing notes

Sensation Mixed Colors growing notes
- Germination: 7-14 Days at 65–80 °F; sow 1/4 in.
- Mature size: 37–48 in; habit: Upright/Erect.
- Spacing: 12 in between plants and 18 in between rows.
- Light and soil: Full sun; Loamy near pH 6.0–6.5.
- Water and support: Drought tolerant; No-Support.
- Maturity basis: 70-79 Days from sowing to the primary bloom or market stage used for the listed maturity range.

Complete growing guide

How to grow Sensation Mixed Colors Garden cosmos

Botanical identity: Cosmos bipinnatus. Life cycle: Annual.

Sow 1/4 in and use a seed-zone temperature near 65–80 °F. Expected emergence: 7-14 Days. Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.

Plant during Late Spring. Space plants 12 in apart with 18 in between rows or planting bands.

Provide Full sun, drought tolerant water, and loamy near pH 6.0–6.5. Support: No-Support.

Practical field and garden tips

For a longer display of Sensation Mixed Colors, remove spent blooms unless seed is being saved. Give the plant its listed spacing, cut flowers with clean tools, and leave selected heads to mature fully for seed. Expected emergence is 7-14 Days; the listed maturity or bloom timing is 70-79 Days.
Harvest, storage, uses, and benefitsWhen and how to harvest, ways to use the crop, storage, culinary value, habitat value, and garden roles

Harvest and use notes

Harvest and use - Sensation Mixed Colors. 70-79 Days. Principal harvest form or size: Flower or head form characteristic of Sensation Mixed Colors; mature plant 37–48 in; color at the main harvest or mature stage: Mixed. Best for meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Grown for ornamental or habitat use rather than as a food crop. For seed saving, allow selected fruit, pods, ears, or seed heads to reach full biological maturity rather than using the normal eating or cutting stage. Sensation Mixed Colors contains more than one genetic line or species.

Uses and benefits

Sensation Mixed Colors is suited to meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Its mixed flowers and 37–48 in stature help determine whether it belongs in a border, cutting row, container, meadow edge, or restoration-style planting. Grown for ornamental or habitat use rather than as a food crop.
Seed saving and carrying the variety forwardPollination, isolation, selection, harvest, cleaning, drying, and storage
Sensation Mixed Colors contains more than one genetic line or species. Seed collected from the planting will not reproduce the original packet proportions. If saving seed, identify species separately, prevent unwanted crossing where possible, harvest only fully mature seed, dry thoroughly, and label each lot by species, year, and source.
Problems and answersPests, diseases, troubleshooting, practical response, and product-specific questions

Variety troubleshooting summary

Sensation Mixed Colors troubleshooting

Common concerns: damping-off from saturated media; poor emergence from wrong temperature or depth; leggy seedlings from weak light; crowding and weak airflow; lodging in wind or rain; feeding damage from slugs, caterpillars, beetles, or mammals; foliar disease under prolonged leaf wetness. Management: use clean media, the sowing depth and temperature, strong light, appropriate thinning, and morning irrigation at soil level. Match support to plant height before wind becomes a problem. Inspect regularly and use the least disruptive control appropriate to the pest, plant, and pollinator setting. Remove diseased debris and rotate annual flower beds where recurring disease is severe.

If growth or harvest differs from the description, compare plants of the same age and planting date, review soil temperature and irrigation, and use local Cooperative Extension or diagnostic services before applying a control.

Complete pest and problem guide

Common concerns: damping-off from saturated media; poor emergence from wrong temperature or depth; leggy seedlings from weak light; crowding and weak airflow; lodging in wind or rain; feeding damage from slugs, caterpillars, beetles, or mammals; foliar disease under prolonged leaf wetness. Management: use clean media, the sowing depth and temperature, strong light, appropriate thinning, and morning irrigation at soil level. Match support to plant height before wind becomes a problem. Inspect regularly and use the least disruptive control appropriate to the pest, plant, and pollinator setting. Remove diseased debris and rotate annual flower beds where recurring disease is severe.

Questions gardeners ask

Frequently Asked Questions - Sensation Mixed Colors

When is Sensation Mixed Colors ready?
70-79 Days from sowing to the primary bloom or market stage used for the listed maturity range

How long does germination take?
Expect 7-14 Days near 65–80 °F; actual emergence changes with moisture, seed condition, and soil temperature.

How large does it grow?
About 37–48 in with an upright/erect habit. Support: No-Support.

Can it grow in a container?
Possible in a large container, raised bed, or in-ground planting with room for the mature plant

How is it used?
Primary role: Meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Grown for ornamental or habitat use rather than as a food crop.

Can I save seed?
Yes where the crop biology allows, but keep compatible varieties isolated, use several healthy plants, wait for full seed maturity, dry thoroughly, and label the lot.
History, provenance, and cultural contextWhat is documented, what is reported, what remains uncertain, and how the variety reached gardeners

Scientific name: Cosmos bipinnatus

Common name: Garden cosmos

Cultivar or variety: Sensation Mixed Colors

Provenance summary

Garden cosmos and sulphur cosmos come from Mexico and neighboring parts of the Americas. They became widely grown annual flowers because direct-sown plants flower freely in sun and modest soil. Cultivar names distinguish color, stature, and petal form, but available evidence does not assign a breeder or release date where the public record is incomplete. A complete public breeder or release record for the named Sensation Mixed Colors strain has not been located. The cultivar name is retained, but no person, community, date, or place of origin is assigned without reliable documentation.

Plant and variety history

Garden cosmos and sulphur cosmos come from Mexico and neighboring parts of the Americas. They became widely grown annual flowers because direct-sown plants flower freely in sun and modest soil. Cultivar names distinguish color, stature, and petal form, but available evidence does not assign a breeder or release date where the public record is incomplete. A complete public breeder or release record for the named Sensation Mixed Colors strain has not been located. The cultivar name is retained, but no person, community, date, or place of origin is assigned without reliable documentation.

Additional seed provenance record

Garden cosmos and sulphur cosmos come from Mexico and neighboring parts of the Americas. They became widely grown annual flowers because direct-sown plants flower freely in sun and modest soil. Cultivar names distinguish color, stature, and petal form, but available evidence does not assign a breeder or release date where the public record is incomplete. A complete public breeder or release record for the named Sensation Mixed Colors strain has not been located. The cultivar name is retained, but no person, community, date, or place of origin is assigned without reliable documentation.

Additional varietal details

Sensation Mixed Colors is suited to meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Its mixed flowers and 37–48 in stature help determine whether it belongs in a border, cutting row, container, meadow edge, or restoration-style planting. Grown for ornamental or habitat use rather than as a food crop.

Additional record notes

Sensation Mixed Colors is an annual garden cosmos with mixed color, 37–48 in mature height or spread, and an upright/erect habit. Harvest form or size: Flower or head form characteristic of Sensation Mixed Colors; mature plant 37–48 in. Botanically it is Cosmos bipinnatus. Maturity or first bloom: 70-79 Days; germination: 7-14 Days at 65–80 °F. Best for meadow-style color, cut flowers, low-input sunny beds, and pollinator use. Grown for ornamental or habitat use rather than as a food crop.

Source and record notes

https://www.allianceofnativeseedkeepers.com/products/cosmos-sensation-mixed-colors-cosmos-bipinnatus
https://powo.science.kew.org/results?q=Cosmos+bipinnatus
https://seedalliance.org/publications/seed-saving-guide-gardeners-farmers/
https://plants.ces.ncsu.edu/plants/cosmos-bipinnatus/
https://extension.missouri.edu/publications/g6629

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Customer experience

Reviews for Sensation Mixed Colors

Customer Reviews

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Excellent price for quality product