When should I plant ריחן in Zone 4b?

Start ריחן seeds indoors around Mar 20. Transplant outdoors after May 15. Expect first harvest around Jun 14.

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 ריחן in Zone 4b?

Yes. ריחן needs 40 days to harvest. Zone 4b has a 157-day growing season, which is sufficient. You can plant up to 5 successions.

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🌿 Growing ריחן in Zone 4b

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

Planting Calendar

Indoor

Outdoor

Harvest

Mar 20Oct 5

Season: May 1 – Oct 5 (157 ימים) · Succession: plant every 3 weeks (up to 5x)

אזור4b

כפור אחרוןMay 1

כפור ראשוןOct 5

עונה157 ימים

קטיף40 ימים

שמששמש מלאה

When to Plant ריחן in Zone 4b

Start Seeds Indoors: Mar 20

Start ריחן seeds indoors around Mar 20 (6 שבועות לפני הכפור האחרון). Optimal germination temperature: 80F. Germinates in 5-10 days.

Transplant Outdoors: May 15

Transplant ריחן seedlings outdoors after May 15. Wait until soil temperature reaches 60F. Space plants at 4/מ² (15cm מרווח). Harden off plants for a week before moving outside.

Harvest: Jun 14

First harvest approximately Jun 14 (~30 ימים from transplant). Continue harvesting until first frost (Oct 5).

שתילה מלווה

✅ פלפלים✅ עגבניות✅ חציל

❌ פיגם

ריחן in Other Zones

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