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Light Requirement: Full Sun
Mature Height: 36 – 60 IN
Lifecycle: Annual
Botanical Name: Cosmos bipinnatus
Family: Asteraceae
Symbolism: Harmony, peace, tranquility
Zodiac Sign: Leo
Uses: Cut flowers, borders, pollinator gardens
Additional information
Quantity
1000 Seeds, 🔥2000 Seeds
How to Sow and Plant
How to Sow and Plant
Sowing Directly in the Garden:
Sow outdoors after the last frost when the soil has warmed.
Choose well-drained soil in full sun.
Sow seeds thinly and cover lightly with ¼ inch of soil.
Keep the soil evenly moist until seeds germinate.
Seedlings emerge in 7-14 days.
Thin seedlings to stand 12-18 inches apart.
Sowing Seed Indoors:
Start seeds indoors 4-6 weeks before the last frost.
Sow seeds ¼ inch deep in seed-starting mix.
Keep the soil moist at 70°F.
Seedlings emerge in 7-14 days.
Harden off and transplant outdoors after the danger of frost has passed.
FAQs
FAQs
How can I encourage more blooms on Cosmos?
Deadhead spent flowers regularly to promote continuous blooming. Pinch back the growing tips early in the season for bushier plants.
What if my Cosmos plants become too tall and leggy?
Ensure they are receiving enough sunlight. Consider staking to support their height and prevent them from toppling in strong winds.
Is Cosmos suitable for poor soil?
Yes, Cosmos thrive in poor, well-drained soils. Rich soil can lead to more foliage but fewer flowers.
Reviews (90)
90 reviews for Red Short Cosmos Seed
4.7
Based on 90 reviews
5 star
75
75%
4 star
21
21%
3 star
3
3%
2 star
0%
1 star
0%
1-2 of 90 reviews
Pansy
Verified owner
Well-preserved seeds allow for new planting plans anytime.
(0)(0)
Melody
Verified owner
Overall, I’m impressed with these seeds—their quality has kept my garden thriving.
Well-preserved seeds allow for new planting plans anytime.
Overall, I’m impressed with these seeds—their quality has kept my garden thriving.