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Sensation Mix Cosmo

A balanced mix of white and pinks. A classic summer flower having large 4" to 6" blooms on 4 ft. to 5 ft. tall stems. The foliage is finely cut, and the plants branch out and bloom profusely and continually. Easily grown from seed started indoors or out, cosmos need full sun. 

100 seeds

Sensation Mix Cosmo



Cosmos bipinnatus


Germination: 7-10 days

Germination Temperature: Optimum soil temperatures 70-75ºF.

Seed Planting Depth: Sow ⅛” deep

Starting Indoors: Start indoors 4-6 weeks before the last frost. Provide 70-75 ºF soil temperature. Transplant after the last frost,12-18” apart.

Sowing Outdoors: Direct sow outdoors after the last frost, sow a few seeds every 6", thin 12-18" apart.

Growth Habit: Upright, branching

Height and Width: 48-60” by 24-36”

Spacing: 12-18” apart

Light Needs:  Full sun

Soil Needs: Poor to average, well-drained, tolerates dry soil

Approximate days to flower from seed: 75-90 days

Uses: Cut flowers, flower beds, containers, wildflower and cottage gardens, attracts butterflies and beneficials, 

Care: Deadheading prolongs flowering, staking tall plants helps keep them upright when the plant is full of blooms. Self-seeds.


Customer Reviews

Based on 6 reviews Write a review
Customer Reviews
5.0 Based on 7 Reviews
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Erin B.
United States United States
I recommend this product
Beautiful mix

All the seeds germinated beautifully and are now fully in bloom--gorgeous mix!

United States United States
I recommend this product
mulitple blooms

These seeds took a while to get started and get to blooming stage, but once they did, they were impressive. Large, sturdy plants had many branches and an abundance of intensely pink blossoms.

Pinetree Garden Seeds Sensation Mix Cosmo ReviewPinetree Garden Seeds Sensation Mix Cosmo Review
A Pinetree Garden Seeds Customer
Hannah W.
United States United States

These are so beautiful! They are enormous! And rival some of the squash plants in our vegetable garden. They attract honey bees all day long. I will definitely get these again!

Shirley H.
United States United States

The cosmos did fairly well and are blooming. I supppse they are OK, but I really wanted a double cosmos so I think I ordered incorrectly. The germination rate was OK - planted 12 and have 8 plants in the garden.

United States
Cosmos Recommendation

The seeds germinated rather quickly. The flowers last long after they are cut. They are a delight to have.