Growing Korean Small Onion in Zone 2a
Zone 2a has harsh winters and a short growing season. Start Korean Small Onion early indoors to maximize your harvest window. Last frost: May 15. First frost: Sep 15.
Planting Calendar
Season: May 15 – Sep 15 (123 days)
When to Plant Korean Small Onion in Zone 2a
Harvest: May 27
First harvest approximately May 27 (~40 days from transplant). Continue harvesting until first frost (Sep 15). Korean Small Onion can overwinter in mild climates for continued harvest.
Fall Planting: Aug 4
For a fall harvest, plant Korean Small Onion around Aug 4 (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 2a?
Direct sow Korean Small Onion outdoors around May 15. Harvest around May 27.
What is the last frost date for Zone 2a?
The average last spring frost date for Zone 2a is May 15. The first fall frost averages Sep 15, giving a 123-day growing season.
Can I grow Korean Small Onion in Zone 2a?
Yes. Korean Small Onion needs 65 days to harvest. Zone 2a has a 123-day growing season, which is sufficient.
What is the best month to plant Korean Small Onion in Zone 2a?
The best time to plant Korean Small Onion in Zone 2a is around May 15, 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 2a, expect your first harvest around May 27.
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