Your Cart is Empty


Yellow Cosmos

We have been searching for a tall yellow cosmos and finally found it. We can’t wait to share it with our fellow gardeners. Gentle flowers sway in the breeze, tempting birds, butterflies and pollinators alike. We had lots of fun watching the finches dance among the blossoms just outside our door. Petals start out a delicate light yellow and as the plant grows and the season moves on they deepen to a rich butter color. Grows to 4 feet.

50 Seeds

Yellow Cosmos 


Cosmo bipinnatus


Germination: 7-10 days

Germination Temperature: Optimum soil temperatures 65-75ºF.

Seed Planting Depth: 1/8" deep

Starting Indoors: 4-6 weeks before the last frost. Provide 65-75ºF soil temperature. Transplant after the last frost,10-18" apart. Water seedlings regularly until established. 

Sowing Outdoors: Around last frost date when soil temperature reaches 65-70ºF. Sow a few seeds 3-6" apart, thinning out to 10-18" apart. 

Growth Habit: Upright

Height and Width: 30-36" x 24"

Spacing: 10-18" apart

Light Needs: Full sun

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

Approximate days to flower from seed: 90 days

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

Care: Water seedlings regularly until established. Deadheading prolongs flowering, staking tall plants helps keep them upright when the plant is full of blooms.