When should I plant Koper in Zone 9a?

Direct sow Koper outdoors around Mar 6. Expect first harvest around Apr 15.

What is the last frost date for Zone 9a?

The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.

Yes. Koper needs 40 days to harvest. Zone 9a has a 237-day growing season, which is sufficient. You can plant up to 9 successions.

Zone 9a has warm winters and an extended growing season -- excellent for heat-loving crops like Koper. Zadnja slana: Mar 20. Prva slana: Nov 12.

Outdoor

Harvest

Mar 6Nov 12

Season: Mar 20 – Nov 12 (237 dni) · Succession: plant every 3 weeks (up to 9x)

Cona9a

Zadnja slanaMar 20

Prva slanaNov 12

Sezona237 dni

Žetev40 dni

SoncePolno Sonce

Direct sow Koper seeds outdoors around Mar 6. Wait until soil temperature reaches 50F. Space plants at 4/m² (15cm narazen).

First harvest approximately Apr 15 (~40 dni from planting). Continue harvesting until first frost (Nov 12).

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

❌ Korenje

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