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Cosmos Bipinnatus Seeds - Purity
SEASON
Annual
USDA ZONES
3 - 10
HEIGHT
36 - 60 inches
BLOOM SEASON
Summer and fall
BLOOM COLOR
White
ENVIRONMENT
Full sun to partial shade
SOIL TYPE
Well-drained, pH 6.1 - 7.4
DEER RESISTANT
Yes
HOUSE PLANT
No
About...
Cosmos (Cosmos Bipinnatus Sensation Purity) - Start Cosmos seeds directly outdoors in the spring and enjoy! No flower adds more enchantment to the flower garden than these tall annuals with fine, lacy, fern-like foliage and large pure white blooms. They create a lovely back-drop for the entire garden.
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
12 - 18 inches
Cosmos (Cosmos Bipinnatus Sensation Purity) - Start Cosmos seeds directly outdoors in the spring and enjoy! No flower adds more enchantment to the flower garden than these tall annuals with fine, lacy, fern-like foliage and large pure white blooms. They create a lovely back-drop for the entire garden. They are very easy to grow from flower seed, and a landscape can easily be transformed into a lovely display of soft colors. The extra-large, long-lasting white Cosmos flowers are excellent for cutting as well. Cut them early in the morning just as the petals begin to unfold. The flower will continue to open in the vase and last for 7 - 10 days.
Also known as Mexican Asters, these flowers are native to Mexico. They will provide the best blooms with moderate amounts of water; however, they are drought tolerant and need very little water for survival. Do not over fertilize the plants as this will decrease the amount of blooms. Butterflies and bees are very attracted to the large blooms, and they also will self-sow their own seeds for a new display next season.
How to grow Cosmos from flower seeds: Directly sow seeds into prepared soil after danger of frost has passed. Scatter the flower seeds and lightly rake the soil over at a depth of 1/16 inch. Keep the area moist until germination.
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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