When should I plant רוזמרין in Zone 4b?

Start רוזמרין seeds indoors around Feb 20. Transplant outdoors after May 8. Expect first harvest around Aug 6.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow רוזמרין in Zone 4b?

Yes. רוזמרין needs 90 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

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🌿 Growing רוזמרין in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for רוזמרין in this zone. כפור אחרון: May 1. כפור ראשון: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 20Oct 5

Season: May 1 – Oct 5 (157 ימים)

אזור4b

כפור אחרוןMay 1

כפור ראשוןOct 5

עונה157 ימים

קטיף90 ימים

שמששמש מלאה

When to Plant רוזמרין in Zone 4b

Start Seeds Indoors: Feb 20

Start רוזמרין seeds indoors around Feb 20 (10 שבועות לפני הכפור האחרון). Optimal germination temperature: 70F. Germinates in 14-28 days.

Transplant Outdoors: May 8

Transplant רוזמרין seedlings outdoors after May 8. Wait until soil temperature reaches 55F. Space plants at 1/מ² (30cm מרווח). Harden off plants for a week before moving outside.

Harvest: Aug 6

First harvest approximately Aug 6 (~90 ימים from transplant). Continue harvesting until first frost (Oct 5). רוזמרין can overwinter in mild climates for continued harvest.

שתילה מלווה

✅ שעועיות✅ גזרים✅ כרוב

רוזמרין in Other Zones

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