Growing Korean Small Onion in Zone 10a
Zone 10a has a year-round growing season. Korean Small Onion can be planted almost any time with proper planning. Last frost: Feb 20. First frost: Dec 1.
Planting Calendar
Season: Feb 20 – Dec 1 (284 days)
When to Plant Korean Small Onion in Zone 10a
Harvest: Mar 4
First harvest approximately Mar 4 (~40 days from transplant). Continue harvesting until first frost (Dec 1). Korean Small Onion can overwinter in mild climates for continued harvest.
Fall Planting: Oct 20
For a fall harvest, plant Korean Small Onion around Oct 20 (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 10a?
Direct sow Korean Small Onion outdoors around Feb 20. Harvest around Mar 4.
What is the last frost date for Zone 10a?
The average last spring frost date for Zone 10a is Feb 20. The first fall frost averages Dec 1, giving a 284-day growing season.
Can I grow Korean Small Onion in Zone 10a?
Yes. Korean Small Onion needs 65 days to harvest. Zone 10a has a 284-day growing season, which is sufficient.
What is the best month to plant Korean Small Onion in Zone 10a?
The best time to plant Korean Small Onion in Zone 10a is around Feb 20, 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 10a, expect your first harvest around Mar 4.
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