When should I plant Koper in Zone 3a?

Direct sow Koper outdoors around May 8. Expect first harvest around Jun 17.

What is the last frost date for Zone 3a?

The average last spring frost date for Zone 3a is May 22. The first fall frost averages Sep 12, giving a 113-day growing season.

Can I grow Koper in Zone 3a?

Yes. Koper needs 40 days to harvest. Zone 3a has a 113-day growing season, which is sufficient. You can plant up to 3 successions.

Growing Koper in Zone 3a

Zone 3a has harsh winters and a short growing season. Start Koper early indoors to maximize your harvest window. Zadnja slana: May 22. Prva slana: Sep 12.

Planting Calendar

Outdoor

Harvest

May 8Sep 12

Season: May 22 – Sep 12 (113 dni) · Succession: plant every 3 weeks (up to 3x)

Cona3a

Zadnja slanaMay 22

Prva slanaSep 12

Sezona113 dni

Žetev40 dni

SoncePolno Sonce

When to Plant Koper in Zone 3a

Sow Seeds Outdoors: May 8

Direct sow Koper seeds outdoors around May 8. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm narazen).

Harvest: Jun 17

First harvest approximately Jun 17 (~40 dni from planting). Continue harvesting until first frost (Sep 12).

Fall Planting: Aug 1

For a fall harvest, plant Koper around Aug 1 (6 weeks before first frost).

Sobivanje Rastlin

✅ Zelje ✅ Solata✅ Čebula✅ Koruza✅ Kumare

❌ Korenje

Koper 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 Garden Koper

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

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