When should I plant Cibule in Zone 4a?

Start Cibule seeds indoors around Feb 24. Transplant outdoors after Apr 7. Expect first harvest around Jun 26.

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.

Can I grow Cibule in Zone 4a?

Yes. Cibule needs 110 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

🧅

🧅 Growing Cibule in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Cibule in this zone. Poslední mráz: May 5. První mráz: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 24Oct 1

Season: May 5 – Oct 1 (149 dní)

Zóna4a

Poslední mrázMay 5

První mrázOct 1

Sezóna149 dní

Sklizeň110 dní

SluncePlné Slunce

When to Plant Cibule in Zone 4a

Start Seeds Indoors: Feb 24

Start Cibule seeds indoors around Feb 24 (10 týdnů před posledním mrazem). Optimal germination temperature: 70F. Germinates in 7-14 days.

Transplant Outdoors: Apr 7

Transplant Cibule seedlings outdoors after Apr 7. Wait until soil temperature reaches 45F. Space plants at 9/m² (10cm od sebe). Harden off plants for a week before moving outside.

Harvest: Jun 26

First harvest approximately Jun 26 (~80 dní from transplant). Continue harvesting until first frost (Oct 1).

Smíšená Výsadba

✅ Jahody✅ Zelí✅ Řepy✅ Salát✅ Mrkve✅ Rajčata

❌ Fazole❌ Hrášky

Cibule in Other Zones

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

Plan Your Garden Cibule

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

Start Free Cibule Growing Guide