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Cosmos Bipinnatus Seeds - Sea Shells Mix
SEASON
Annual
USDA ZONES
3 - 10
HEIGHT
36 - 48 inches
BLOOM SEASON
Summer to Fall
BLOOM COLOR
Mix
ENVIRONMENT
Full sun
SOIL TYPE
Well-drained, pH 6.1 - 7.4
DEER RESISTANT
Yes
HOUSE PLANT
No
About...
Cosmos (Cosmos Bipinnatus Sea Shells Mix) - Uniquely rolled and fluted petals come in mixed shades of red, pink and white, giving a bicolor feel. Well-branched plants up to 3 - 4 feet tall thrive in difficult sunny and dry spots, flowering freely all summer.MORE COSMOS OPTIONS
Planting Directions
TEMPERATURE
70 - 85F
AVERAGE GERM TIME
14 - 21 days
LIGHT REQUIRED
Yes
DEPTH
1/16 inch
SOWING RATE
6 seeds per plant
MOISTURE
Keep seeds moist until germination
PLANT SPACING
18 - 24 inches
Cosmos (Cosmos Bipinnatus Sea Shells Mix) - Uniquely rolled and fluted petals come in mixed shades of red, pink and white, giving a bicolor feel. Well-branched plants up to 3 - 4 feet and 18 - 24 inches wide tall thrive in difficult sunny and dry spots, flowering freely all summer. Deadhead for continual bloom well in to Fall. The colorful blooms are simply irresistible to butterflies and attract them, along with bees, birds, and other beneficial insects, all season long. The delicate blooms make gorgeous cut flowers and the more you cut, the more blooms the Sea Shells mix will bloom!
For the best flower production plant in soils of average fertility with moderate water. Cosmos plants tolerate heat, drought, and poor soils. Remove spent blooms to promote additional flowers. Cosmos will usually self-sow if some spent blossoms are kept on plants. Cut flowers typically last 5 to 9 days when blooms are cut as petals unfold. Flowers fully open in vase. Cosmos attract birds, bees and butterflies.
Directly sow Cosmos Bipinnatus seeds into prepared seed beds after danger of frost has passed. For a natural setting, the flower seeds can be scattered onto the prepared soil. Lightly rake the soil over the seeds at a depth of 1/16 inch and keep the area moist.
Common Questions
Why haven’t my plants bloomed?
Over fertilizing will give you beautiful plants but no flowers.
Can I start inside?
Cosmos is very easy to start outside and does not need to be started inside, however you can start them inside 6-8 weeks before the last frost.
Can I use cosmos as a cut flower?
Yes, the best time to pick them is right after the flower opens. Foliage can also be used as greens in an arrangement.
Does cosmos attract beneficial insects to my garden?
Yes, it attracts pollinators such as bees and butterflies, as well as other beneficial insects.
Where should I put in my flower bed?
Due to their height place them in the back of the flower bed. It can also be used as a temporary screen to cover up unsightly elements. Shorter varieties can be used in mixed borders and containers as well.
How can you keep cosmos flowers coming back every year?
Cosmos are annual plants that perish with the first frost, yet they can self-seed for the next growing season. After the flowering season ends in autumn, allow the flower heads to remain on the plants for seed dispersal and self-sowing. These seeds will remain inactive during winter and sprout in spring when temperatures hit 75 degrees Fahrenheit.
How long can cosmos live?
Cosmos is an annual plant that lives one growing season After flowering, the Cosmos plant will gradually weaken and eventually die back.
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