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. น้ำค้างแข็งครั้งสุดท้าย: May 1. น้ำค้างแข็งครั้งแรก: Oct 5.
Planting Calendar
Season: May 1 – Oct 5 (157 วัน) · 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 สัปดาห์ก่อนน้ำค้างแข็งครั้งสุดท้าย). 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/ตร.ม. (8cm ห่างกัน). Harden off plants for a week before moving outside.
Harvest: May 27
First harvest approximately May 27 (~40 วัน 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
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 13bPlan Your Garden Green Onion
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