Growing Green Onion in Zone 4b
Zone 4b has cold winters and a moderate growing season. Timing is key for Green Onion in this zone. Zadnji mraz: May 1. Prvi mraz: Oct 5.
Planting Calendar
Season: May 1 – Oct 5 (157 dana) · Succession: plant every 3 weeks (up to 4x)
When to Plant Green Onion in Zone 4b
Start Seeds Indoors: Mar 20
Start Green Onion seeds indoors around Mar 20 (6 tjedana prije zadnjeg mraza). Optimal germination temperature: 65F. Germinates in 7-14 days.
Transplant Outdoors: Apr 17
Transplant Green Onion seedlings outdoors after Apr 17. Wait until soil temperature reaches 40F. Space plants at 16/m² (8cm razmak). Harden off plants for a week before moving outside.
Harvest: May 27
First harvest approximately May 27 (~40 dana from transplant). Continue harvesting until first frost (Oct 5). Green Onion can overwinter in mild climates for continued harvest.
Fall Planting: Aug 10
For a fall harvest, plant Green Onion around Aug 10 (8 weeks before first frost).
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Green Onion in Other Zones
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Track Green Onion from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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