When should I plant Kålrot in Zone 9a?

Direct sow Kålrot outdoors around Feb 27. Expect first harvest around Apr 13.

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. Kålrot needs 45 days to harvest. Zone 9a has a 237-day growing season, which is sufficient. You can plant up to 9 successions.

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Zone 9a has warm winters and an extended growing season -- excellent for heat-loving crops like Kålrot. Siste frost: Mar 20. Første frost: Nov 12.

Outdoor

Harvest

Feb 27Nov 12

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

Sone9a

Siste frostMar 20

Første frostNov 12

Sesong237 dager

Høst45 dager

SolFull Sol

Direct sow Kålrot seeds outdoors around Feb 27. Wait until soil temperature reaches 40F. Space plants at 9/m² (10cm avstand).

First harvest approximately Apr 13 (~45 dager from planting). Continue harvesting until first frost (Nov 12).

For a fall harvest, plant Kålrot around Sep 17 (8 weeks before first frost).

✅ Erter✅ Vikke

❌ Knoppurt❌ Sennepsblad

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