7-10 days






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Cosmos Seed Starter Grow Kit
BOTANICAL NAMECosmos bipinnatus
USD 10.99
Currently unavailable
Cosmos float airy, daisy-like blooms on tall feathery stems — one of the most effortless cut flowers and pollinator magnets.
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A little knowledge.
A better beginning.
The growing details, all in one place.
Full Sun (6-8 hours daily)
70-75F
USDA Zones 3-10 (Outdoor); All Zones (Indoor)
THE PLANT NOTEBOOK
Cosmos care, from seed onward.
- Botanical name
- Cosmos bipinnatus
- Common names
- Garden Cosmos
- Family
- Asteraceae
- Genus
- Cosmos
- Species
- C. bipinnatus
Start growing
Full sun. Too much fertilizer = leaves but no flowers.
Growing with your kit
Seeds In A Cup® seeds are large and easy for kids to handle.
Propagation
Seed.
Seasonal growth & harvest
Summer bloomer. Photoperiod sensitive (blooms late if planted too early).
Growing conditions
Scrub and waste areas.
Weather & tolerances
Drought tolerant; poor soil tolerant.
Pests & plant health
Aphids.
Plant safety
Safe.
Botanical features
Tall annual with feathery leaves and daisy-like flowers on long stems.
Varieties
‘Sensation’, ‘Seashells’.
Garden & everyday uses
Cut flowers, pollinator gardens
Native range & distribution
Native to Mexico.
Conservation
Secure.
Name origins
Greek ‘kosmos’ meaning order/harmony/beauty.
History
Missionary priests in Mexico cultivated them for their evenly spaced petals.
A closer look
The details
behind your kit.
Full product description
Catalog variants
- SIAC-TGK-456GHJJ — USD 10.99 · Out of stock
Shipping & returns
Explore our shipping information and returns information, or contact us with questions.
Good questions grow here
A little more clarity.
How do I grow Cosmos from seed?
Moisten the included soil, sow your Cosmos seeds at the depth on the instruction card, keep the planter warm and bright under the humidity lid, and mist until they sprout. Full steps are in your kit.
How long do Cosmos seeds take to germinate?
Cosmos seeds typically sprout in 7-10 days at 70-75F when kept warm and evenly moist. Your guide lists the ideal conditions.
Growing details are supplied in the Seeds In A Cup product catalog. Follow the instructions included with your specific kit.
Our information standards ↗The growing journal
Read. Learn. Grow.
1 articles matched to this plant.
cosmos · Growing guides
The Ultimate Guide to Growing Cosmos: A Masterclass in Cultivation
Whether you are establishing a backyard garden, a community plot, or an indoor sanctuary, mastering the cultivation of Cosmos requires a deep understanding of its biological prefer
Read article