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When to Plant Rosemary in Zone 2B

USDA Zone

2B

Cities Covered

17

Avg Last Frost

Thursday, May 28, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 2B

Start Seeds Indoors Thursday, March 19, 2026
Transplant Outdoors Thursday, June 11, 2026

Pro Tip: Start Rosemary seeds indoors 10 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Salvia rosmarinus
Days to Maturity 120 days
Sun Requirements Full Sun (6+ hours)
Plant Spacing 24" apart

Cities in Zone 2B

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Growing Rosemary in USDA Zone 2B

Rosemary (Salvia rosmarinus) grows well in USDA Hardiness Zone 2B. This zone includes cities like Gakona, Glennallen, Mc Grath and 14 more.

The average last frost date for Zone 2B is around Thursday, May 28, 2026. For best results, start your Rosemary seeds indoors around Thursday, March 19, 2026, then transplant outdoors around Thursday, June 11, 2026.

Expect to harvest your Rosemary approximately 120 days after planting.