Plant Anywhere›Plant Guides›Korean Small Onion›Zone 9b
Korean Small Onion illustration

Growing Korean Small Onion in Zone 9b

Zone 9b has warm winters and an extended growing season — excellent for heat-loving crops like Korean Small Onion. Last frost: Mar 10. First frost: Nov 15.

Planting Calendar

Outdoor
Harvest
Feb 10Nov 15

Season: Mar 10 – Nov 15 (250 days)

Zone9b
Last FrostMar 10
First FrostNov 15
Season Length250 days
Days to Harvest65
SunFull Sun
Frost ToleranceHeavy
Spacing16/sqft (3" apart)

When to Plant Korean Small Onion in Zone 9b

Harvest: Mar 22

First harvest approximately Mar 22 (~40 days from transplant). Continue harvesting until first frost (Nov 15). Korean Small Onion can overwinter in mild climates for continued harvest.

Fall Planting: Oct 4

For a fall harvest, plant Korean Small Onion around Oct 4 (6 weeks before first frost).

Companion Planting

✅ Carrot✅ Beet✅ Lettuce
❌ Bean❌ Pea

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 13b

Plan Your Korean Small Onion Garden

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

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