Growing Korean Small Onion in Zone 6a
Zone 6a has mild winters and a long growing season — good conditions for Korean Small Onion. Last frost: Apr 28. First frost: Oct 8.
Planting Calendar
Season: Apr 28 – Oct 8 (163 days)
When to Plant Korean Small Onion in Zone 6a
Harvest: May 10
First harvest approximately May 10 (~40 days from transplant). Continue harvesting until first frost (Oct 8). Korean Small Onion can overwinter in mild climates for continued harvest.
Fall Planting: Aug 27
For a fall harvest, plant Korean Small Onion around Aug 27 (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 6a?
Direct sow Korean Small Onion outdoors around Apr 28. Harvest around May 10.
What is the last frost date for Zone 6a?
The average last spring frost date for Zone 6a is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.
Can I grow Korean Small Onion in Zone 6a?
Yes. Korean Small Onion needs 65 days to harvest. Zone 6a has a 163-day growing season, which is sufficient.
What is the best month to plant Korean Small Onion in Zone 6a?
The best time to plant Korean Small Onion in Zone 6a is around Apr 28, 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 6a, expect your first harvest around May 10.
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