When should I plant Koriander in Zone 9b?

Direct sow Koriander outdoors around Feb 24. Expect first harvest around Mar 26.

What is the last frost date for Zone 9b?

The average last spring frost date for Zone 9b is Mar 10. The first fall frost averages Nov 15, giving a 250-day growing season.

Can I grow Koriander in Zone 9b?

Yes. Koriander needs 30 days to harvest. Zone 9b has a 250-day growing season, which is sufficient. You can plant up to 15 successions.

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🌿 Kweken van Koriander in Zone 9b

Zone 9b has warm winters and an extended growing season -- excellent for heat-loving crops like Koriander. Laatste vorst: Mar 10. Eerste vorst: Nov 15.

Planting Calendar

Outdoor

Harvest

Feb 24Nov 15

Season: Mar 10 – Nov 15 (250 dagen) · Succession: plant every 2 weeks (up to 15x)

Zone9b

Laatste vorstMar 10

Eerste vorstNov 15

Seizoen250 dagen

Oogst30 dagen

ZonHalfschaduw

When to Plant Koriander in Zone 9b

Sow Seeds Outdoors: Feb 24

Direct sow Koriander seeds outdoors around Feb 24. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm afstand).

Harvest: Mar 26

First harvest approximately Mar 26 (~30 dagen from planting). Continue harvesting until first frost (Nov 15).

Fall Planting: Oct 4

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

Begeleidende Beplanting

✅ Tomaten✅ Paprika’s✅ Bonen✅ Erwten✅ Spinazie

❌ Venkel❌ Dille

Koriander in Andere 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 Je Tuin voor Koriander

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

Start Free Koriander Growing Guide