When should I plant תירס in Zone 4a?

Direct sow תירס outdoors around May 12. Expect first harvest around Aug 5.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Yes. תירס needs 85 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 4 successions.

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

Outdoor

Harvest

May 12Oct 1

Season: May 5 – Oct 1 (149 ימים) · Succession: plant every 2 weeks (up to 4x)

אזור4a

כפור אחרוןMay 5

כפור ראשוןOct 1

עונה149 ימים

קטיף85 ימים

שמששמש מלאה

Direct sow תירס seeds outdoors around May 12. Wait until soil temperature reaches 60F. Space plants at 4/מ² (15cm מרווח).

First harvest approximately Aug 5 (~85 ימים from planting). Continue harvesting until first frost (Oct 1).

✅ שעועיות✅ דלעת✅ מלפפונים✅ אפונים✅ דלועות

❌ עגבניות

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Track תירס from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.