When should I plant Koriander in Zone 1b?

Direct sow Koriander outdoors around May 11. Expect first harvest around Jun 10.

What is the last frost date for Zone 1b?

The average last spring frost date for Zone 1b is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Koriander in Zone 1b?

Yes. Koriander needs 30 days to harvest. Zone 1b has a 95-day growing season, which is sufficient. You can plant up to 4 successions.

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🌿 Growing Koriander in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Koriander early indoors to maximize your harvest window. Siste frost: May 25. Første frost: Aug 28.

Planting Calendar

Outdoor

Harvest

May 11Aug 28

Season: May 25 – Aug 28 (95 dager) · Succession: plant every 2 weeks (up to 4x)

Sone1b

Siste frostMay 25

Første frostAug 28

Sesong95 dager

Høst30 dager

SolHalvskygge

When to Plant Koriander in Zone 1b

Sow Seeds Outdoors: May 11

Direct sow Koriander seeds outdoors around May 11. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm avstand).

Harvest: Jun 10

First harvest approximately Jun 10 (~30 dager from planting). Continue harvesting until first frost (Aug 28).

Fall Planting: Jul 17

For a fall harvest, plant Koriander around Jul 17 (6 weeks before first frost).

Samdyrking

✅ Tomater✅ Paprikaer✅ Bønner✅ Erter✅ Spinat

❌ Fennikel❌ Dill

Koriander 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

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

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