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When to Plant Marjoram in Iron Belt, Wisconsin (54536)

Location

Iron Belt, Wisconsin

ZIP Code

54536

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, March 20, 2026
Transplant Outdoors Friday, May 29, 2026

Pro Tip: Start Marjoram seeds indoors 8 weeks before your last frost date, then transplant outdoors around Friday, May 29, 2026.

🌿 Plant Details

Scientific Name Origanum majorana
Days to Maturity 60 days
Mature Height 12-24"
Spread 18"
Type Spreading
Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Full Sun (6+ hours)

💧

Water

Low to Moderate

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 7-14 days

Ready to Plant Marjoram in Iron Belt?

Get your seeds now so they're ready by Friday, March 20, 2026.

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🤝 Good Companions

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Other Plants for Iron Belt

Growing Marjoram in Zone 4a

Marjoram (Origanum majorana) is a popular garden vegetable. In Iron Belt, Wisconsin, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, March 20, 2026.

Your average last frost date is Friday, May 15, 2026. Plan to transplant your Marjoram seedlings outdoors around Friday, May 29, 2026, about 2 weeks after your last frost date.