Korean Small Onion illustration

Growing Korean Small Onion in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Korean Small Onion in this zone. Sista frost: May 1. Första frost: Oct 5.

Planting Calendar

Outdoor
Harvest
Apr 3Oct 5

Season: May 1 – Oct 5 (157 dagar)

Zon4b
Sista frostMay 1
Första frostOct 5
Säsong157 dagar
Skörd65 dagar
SolFull Sol

When to Plant Korean Small Onion in Zone 4b

Harvest: May 13

First harvest approximately May 13 (~40 dagar from transplant). Continue harvesting until first frost (Oct 5). Korean Small Onion can overwinter in mild climates for continued harvest.

Fall Planting: Aug 24

For a fall harvest, plant Korean Small Onion around Aug 24 (6 weeks before first frost).

Samplantering

❌ Bean❌ Ärt

Plan Your Garden Korean Small Onion

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

Start Free Korean Small Onion Growing Guide