When should I plant Green Onion in Zone 3b?

Start Green Onion seeds indoors around Apr 3. Transplant outdoors after May 1. Expect first harvest around Jun 10.

What is the last frost date for Zone 3b?

The average last spring frost date for Zone 3b is May 15. The first fall frost averages Sep 22, giving a 130-day growing season.

Can I grow Green Onion in Zone 3b?

Yes. Green Onion needs 65 days to harvest. Zone 3b has a 130-day growing season, which is sufficient. You can plant up to 3 successions.

Kweken van Green Onion in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Green Onion early indoors to maximize your harvest window. Laatste vorst: May 15. Eerste vorst: Sep 22.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 3Sep 22

Season: May 15 – Sep 22 (130 dagen) · Succession: plant every 3 weeks (up to 3x)

Zone3b

Laatste vorstMay 15

Eerste vorstSep 22

Seizoen130 dagen

Oogst65 dagen

Zonfull-to-part

When to Plant Green Onion in Zone 3b

Start Seeds Indoors: Apr 3

Start Green Onion seeds indoors around Apr 3 (6 weken voor de laatste vorst). Optimal germination temperature: 65F. Germinates in 7-14 days.

Transplant Outdoors: May 1

Transplant Green Onion seedlings outdoors after May 1. Wait until soil temperature reaches 40F. Space plants at 16/m² (8cm afstand). Harden off plants for a week before moving outside.

Harvest: Jun 10

First harvest approximately Jun 10 (~40 dagen from transplant). Continue harvesting until first frost (Sep 22). Green Onion can overwinter in mild climates for continued harvest.

Fall Planting: Jul 28

For a fall harvest, plant Green Onion around Jul 28 (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