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When to Plant Oregano in Zone 3A

USDA Zone

3A

Cities Covered

25

Avg Last Frost

Monday, May 25, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 3A

Start Seeds Indoors Monday, March 30, 2026
Transplant Outdoors Monday, June 8, 2026

Pro Tip: Start Oregano seeds indoors 8 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Origanum vulgare
Days to Maturity 80 days
Sun Requirements Full Sun (6+ hours)
Plant Spacing 12" apart

Cities in Zone 3A

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Growing Oregano in USDA Zone 3A

Oregano (Origanum vulgare) grows well in USDA Hardiness Zone 3A. This zone includes cities like Embarrass, Soudan, Tower and 22 more.

The average last frost date for Zone 3A is around Monday, May 25, 2026. For best results, start your Oregano seeds indoors around Monday, March 30, 2026, then transplant outdoors around Monday, June 8, 2026.

Expect to harvest your Oregano approximately 80 days after planting.