When should I plant Koriander in Zone 12b?

Direct sow Koriander outdoors around Dec 18. Expect first harvest around Jan 17.

What is the last frost date for Zone 12b?

The average last spring frost date for Zone 12b is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.

Yes. Koriander needs 30 days to harvest. Zone 12b has a 364-day growing season, which is sufficient. You can plant up to 23 successions.

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Zone 12b has a year-round growing season. Koriander can be planted almost any time with proper planning. Siste frost: Jan 1. Første frost: Dec 31.

Outdoor

Harvest

Dec 18Dec 31

Season: Jan 1 – Dec 31 (364 dager) · Succession: plant every 2 weeks (up to 23x)

Sone12b

Siste frostJan 1

Første frostDec 31

Sesong364 dager

Høst30 dager

SolHalvskygge

Direct sow Koriander seeds outdoors around Dec 18. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm avstand).

First harvest approximately Jan 17 (~30 dager from planting). Continue harvesting until first frost (Dec 31).

For a fall harvest, plant Koriander around Nov 19 (6 weeks before first frost).

✅ Tomater✅ Paprikaer✅ Bønner✅ Erter✅ Spinat

❌ Fennikel❌ Dill

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