When should I plant Koriander in Zone 6b?

Direct sow Koriander outdoors around Apr 1. Expect first harvest around May 1.

What is the last frost date for Zone 6b?

The average last spring frost date for Zone 6b is Apr 15. The first fall frost averages Oct 22, giving a 190-day growing season.

Yes. Koriander needs 30 days to harvest. Zone 6b has a 190-day growing season, which is sufficient. You can plant up to 11 successions.

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Zone 6b has mild winters and a long growing season -- good conditions for Koriander. Siste frost: Apr 15. Første frost: Oct 22.

Outdoor

Harvest

Apr 1Oct 22

Season: Apr 15 – Oct 22 (190 dager) · Succession: plant every 2 weeks (up to 11x)

Sone6b

Siste frostApr 15

Første frostOct 22

Sesong190 dager

Høst30 dager

SolHalvskygge

Direct sow Koriander seeds outdoors around Apr 1. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm avstand).

First harvest approximately May 1 (~30 dager from planting). Continue harvesting until first frost (Oct 22).

For a fall harvest, plant Koriander around Sep 10 (6 weeks before first frost).

✅ Tomater✅ Paprikaer✅ Bønner✅ Erter✅ Spinat

❌ Fennikel❌ Dill

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

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