Sensation Mixed

Family: Asteraceae Flower

Planting Schedule

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Feathery, airy blooms arrive in a dazzling spectrum—silk-petaled flowers that seem to glow in warm sunset tones and cool jewel shades.

Sensation Mixed cosmos produces long, slender stems with a light, graceful texture, making each planting feel like a living bouquet from the first open bloom. Grow it for abundant cut-flower display and for a garden that stays in motion with color all season long.

Light: Full SunMaturity: 60 DaysHabit: Upright

Botanical illustration of Sensation Mixed

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Sensation Mixed Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone	Start Indoors	Sow / Transplant	Harvest
Zone 1a	Protected Environment Only
Zone 1b	Direct Sow	Jun 1st	Jul 31st – Aug 1st
Zone 2a	Direct Sow	May 25th	Jul 24th – Aug 29th
Zone 2b	Direct Sow	May 15th	Jul 14th – Aug 25th
Zone 3a	Direct Sow	May 15th	Jul 14th – Sep 1st
Zone 3b	Direct Sow	May 19th	Jul 18th – Sep 21st
Zone 4a	Direct Sow	May 15th	Jul 14th – Sep 24th
Zone 4b	Direct Sow	May 13th	Jul 12th – Sep 27th
Zone 5a	Direct Sow	May 8th	Jul 7th – Sep 30th
Zone 5b	Direct Sow	May 4th	Jul 3rd – Oct 5th
Zone 6a	Direct Sow	May 1st	Jun 30th – Oct 10th
Zone 6b	Direct Sow	Apr 25th	Jun 24th – Oct 16th
Zone 7a	Direct Sow	Apr 20th	Jun 19th – Oct 20th
Zone 7b	Direct Sow	Apr 10th	Jun 9th – Oct 28th
Zone 8a	Direct Sow	Apr 1st	May 31st – Nov 5th
Zone 8b	Direct Sow	Mar 23rd	May 22nd – Nov 12th
Zone 9a	Direct Sow	Mar 6th	May 5th – Nov 26th
Zone 9b	Direct Sow	Feb 9th	Apr 10th – Dec 9th
Zone 10a	—	Oct 1st	Nov 30th – Feb 28th
Zone 10b	—	Oct 1st	Nov 30th – Feb 28th
Zone 11a	—	Oct 1st	Nov 30th – Feb 28th
Zone 11b	—	Oct 1st	Nov 30th – Feb 28th
Zone 12a	—	Oct 1st	Nov 30th – Feb 28th
Zone 12b	—	Oct 1st	Nov 30th – Feb 28th
Zone 13a	—	Oct 1st	Nov 30th – Feb 28th
Zone 13b	—	Oct 1st	Nov 30th – Feb 28th

Crop Details

Trait	Value
Days to Maturity	60
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	70
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

These cosmos petals don’t shout—they float in with a light sweetness and a faint green snap, so treat them like delicate herbs. Use a light hand and let acid (lemon/vinaigrette) do the heavy lifting so the petals stay pretty and textural.

Best Uses

torn-petal salads where they catch vinaigrette without turning mushy
garnish on citrusy seafood or grilled chicken for a cool, airy lift
infuse simple syrups or sparkling water for a delicate floral aroma
use sparingly as a confetti topper on soft cheeses and warm toast

Flavor Profile

light, subtly sweet floral notes peppery/green bite at the edges silky petal texture that holds a little chew

Kitchen Pairings

lemon honey black pepper fennel pollen or anise goat cheese grilled shrimp

Frequently Asked Questions

What pest or disease problem commonly affects Cosmos bipinnatus (Cosmos Sensation), and how can I manage it at home?

Cosmos bipinnatus is prone to powdery mildew, especially in humid weather and when plants are crowded. Water at the base to keep foliage dry, space plants so air can circulate, and remove badly affected leaves early. If mildew persists, spray with a garden-safe potassium bicarbonate product and reapply according to label directions.

How often should I water Cosmos bipinnatus during the main growing phase to keep flowering healthy?

During active growth and bud formation, water deeply when the top 1 inch of soil feels dry, typically about 2–3 times per week depending on heat and wind. Cosmos prefers evenly moist soil but not soggy conditions—poor drainage can trigger root problems. Water in the morning so the foliage dries quickly before evening.

How do I tell when Cosmos bipinnatus (Cosmos Sensation) is ready to harvest for cut flowers?

Harvest when the flower heads are fully colored and the central disk florets are open, but before they start turning brown and forming seed. Cut stems early in the morning and choose blooms with sturdy, fresh foliage for the longest vase life. For continuous flowering, remove spent heads promptly so the plant keeps producing new buds.