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When to Plant Zinnia in New Plymouth, Ohio (45654)

Location

New Plymouth, Ohio

ZIP Code

45654

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, April 22, 2026

Pro Tip: Sow Zinnia directly outdoors 1 week after your last frost date — it needs warm soil.

🌿 Plant Details

Scientific Name Zinnia elegans
Days to Maturity 60 days
Mature Height 12-36"
Spread 12"
Type Annual

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 5-10 days

Ready to Plant Zinnia in New Plymouth?

Get your seeds now so they're ready by Wednesday, April 22, 2026.

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Other Plants for New Plymouth

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Growing Zinnia in Zone 6b

Zinnia (Zinnia elegans) is a popular garden vegetable. In New Plymouth, Ohio, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, April 22, 2026.

Your average last frost date is Wednesday, April 15, 2026. Zinnia grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.