When to Plant Cosmos in Hammonton, New Jersey (08037)

Location

Hammonton, New Jersey

ZIP Code

08037

USDA Zone

Last Frost

Friday, April 10, 2026

📅 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.

🌿 Plant Details

Scientific Name Cosmos bipinnatus

Days to Maturity 60 days

Mature Height 24-60"

Spread 18"

Type Annual

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Low-Moderate

↔️

Spacing

18" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 7-14 days

Ready to Plant Cosmos in Hammonton?

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

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Other Plants for Hammonton

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Growing Cosmos in Zone 7a

Cosmos (Cosmos bipinnatus) is a popular garden vegetable. In Hammonton, New Jersey, 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.