When should I plant Green Onion in Zone 1a?

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 1a?

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

Can I grow Green Onion in Zone 1a?

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

Kweken van Green Onion in Zone 1a

Zone 1a has harsh winters and a short growing season. Start Green Onion early indoors to maximize your harvest window. Laatste vorst: May 25. Eerste vorst: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 13Aug 28

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

Zone1a

Laatste vorstMay 25

Eerste vorstAug 28

Seizoen95 dagen

Oogst65 dagen

Zonfull-to-part

When to Plant Green Onion in Zone 1a

Start Seeds Indoors: Apr 13

Start Green Onion seeds indoors around Apr 13 (6 weken voor de laatste vorst). 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 afstand). Harden off plants for a week before moving outside.

Harvest: Jun 20

First harvest approximately Jun 20 (~40 dagen 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).

Begeleidende Beplanting

✅ Wortel ✅ Rode Biet ✅ Sla ✅ Tomaat✅ Pepper✅ Kool✅ Aardbeien

❌ Bean❌ Erwt

Green Onion in Andere 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 Je Tuin voor 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