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When to Plant Cosmos in Sidney, Kentucky (41564)

Location

Sidney, Kentucky

ZIP Code

41564

USDA Zone

7a

Last Frost

Friday, April 10, 2026

๐Ÿ“… Planting Calendar

Direct Sow Outdoors Friday, April 10, 2026

Pro Tip: Sow Cosmos directly outdoors around your last frost date when soil starts to warm.

๐ŸŒฟ Plant Details

Scientific Name Cosmos bipinnatus
Days to Maturity 60 days
Mature Height 24-60"
Spread 18"
Type Annual

โ˜€๏ธ Growing Requirements

โ˜€๏ธ

Sun

Full Sun (6-8 hours)

๐Ÿ’ง

Water

Low-Moderate

โ†”๏ธ

Spacing

18" apart

๐ŸŒฑ

Planting Depth

0.25" deep

Seeds typically germinate in 7-14 days

Ready to Plant Cosmos in Sidney?

Get your seeds now so they're ready by Friday, April 10, 2026.

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๐Ÿค Good Companions

CornSquashTomato

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Growing Cosmos in Zone 7a

Cosmos (Cosmos bipinnatus) is a popular garden vegetable. In Sidney, Kentucky, which is in USDA Hardiness Zone 7a, you should direct sow seeds around Friday, April 10, 2026.

Your average last frost date is Friday, April 10, 2026. Cosmos grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.