Growing Korean Small Onion in Zone 1b
Zone 1b has harsh winters and a short growing season. Start Korean Small Onion early indoors to maximize your harvest window. Last frost: May 25. First frost: Aug 28.
Planting Calendar
Season: May 25 – Aug 28 (95 days)
When to Plant Korean Small Onion in Zone 1b
Harvest: Jun 6
First harvest approximately Jun 6 (~40 days from transplant). Continue harvesting until first frost (Aug 28). Korean Small Onion can overwinter in mild climates for continued harvest.
Fall Planting: Jul 17
For a fall harvest, plant Korean Small Onion around Jul 17 (6 weeks before first frost).
Companion Planting
Korean Small 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 13bFrequently Asked Questions
When should I plant Korean Small Onion in Zone 1b?
Direct sow Korean Small Onion outdoors around May 25. Harvest around Jun 6.
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 Korean Small Onion in Zone 1b?
Yes. Korean Small Onion needs 65 days to harvest. Zone 1b has a 95-day growing season, which is sufficient.
What is the best month to plant Korean Small Onion in Zone 1b?
The best time to plant Korean Small Onion in Zone 1b is around May 25, when soil temperatures are suitable and frost risk has passed.
What companion plants grow well with Korean Small Onion?
Good companion plants for Korean Small Onion include Carrot, Beet, Lettuce. Avoid planting Korean Small Onion near Bean, Pea.
How long does Korean Small Onion take to harvest?
Korean Small Onion takes approximately 65 days from planting to harvest. In Zone 1b, expect your first harvest around Jun 6.
Plan Your Korean Small Onion Garden
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