When should I plant Green Onion in Zone 1b?

Start Green Onion seeds indoors around Apr 13. Transplant outdoors after May 11. Expect first harvest around Jun 20.

What is the last frost date for Zone 1b?

The average last spring frost date for Zone 1b is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Green Onion in Zone 1b?

Yes. Green Onion needs 65 days to harvest. Zone 1b has a 95-day growing season, which is sufficient. You can plant up to 1 successions.

Growing Green Onion in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Green Onion early indoors to maximize your harvest window. Viimeinen halla: May 25. Ensimmäinen halla: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 13Aug 28

Season: May 25 – Aug 28 (95 päivää) · Succession: plant every 3 weeks (up to 1x)

Vyöhyke1b

Viimeinen hallaMay 25

Ensimmäinen hallaAug 28

Kausi95 päivää

Sato65 päivää

Aurinkofull-to-part

When to Plant Green Onion in Zone 1b

Start Seeds Indoors: Apr 13

Start Green Onion seeds indoors around Apr 13 (6 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 65F. Germinates in 7-14 days.

Transplant Outdoors: May 11

Transplant Green Onion seedlings outdoors after May 11. Wait until soil temperature reaches 40F. Space plants at 16/m² (8cm välein). Harden off plants for a week before moving outside.

Harvest: Jun 20

First harvest approximately Jun 20 (~40 päivää from transplant). Continue harvesting until first frost (Aug 28). Green Onion can overwinter in mild climates for continued harvest.

Fall Planting: Jul 3

For a fall harvest, plant Green Onion around Jul 3 (8 weeks before first frost).

Kumppaniviljely

✅ Porkkana ✅ Punajuuri ✅ Salaatti ✅ Tomaatti✅ Pepper✅ Kaali✅ Mansikat

❌ Bean❌ Herne

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 13b

Plan Your Garden Green Onion

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

Start Free Green Onion Growing Guide