When should I plant Blomkål in Zone 12a?

Start Blomkål seeds indoors around Nov 20. Transplant outdoors after Dec 18. Expect first harvest around Feb 16.

What is the last frost date for Zone 12a?

The average last spring frost date for Zone 12a is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.

Can I grow Blomkål in Zone 12a?

Yes. Blomkål needs 75 days to harvest. Zone 12a has a 364-day growing season, which is sufficient.

🥦

🥦 Growing Blomkål in Zone 12a

Zone 12a has a year-round growing season. Blomkål can be planted almost any time with proper planning. Sista frost: Jan 1. Första frost: Dec 31.

Planting Calendar

Indoor

Outdoor

Harvest

Nov 20Dec 31

Season: Jan 1 – Dec 31 (364 dagar)

Zon12a

Sista frostJan 1

Första frostDec 31

Säsong364 dagar

Skörd75 dagar

SolFull Sol

When to Plant Blomkål in Zone 12a

Start Seeds Indoors: Nov 20

Start Blomkål seeds indoors around Nov 20 (6 veckor före sista frosten). Optimal germination temperature: 70F. Germinates in 5-10 days.

Transplant Outdoors: Dec 18

Transplant Blomkål seedlings outdoors after Dec 18. Wait until soil temperature reaches 50F. Space plants at 1/m² (30cm avstånd). Harden off plants for a week before moving outside.

Harvest: Feb 16

First harvest approximately Feb 16 (~60 dagar from transplant). Continue harvesting until first frost (Dec 31).

Fall Planting: Oct 8

For a fall harvest, plant Blomkål around Oct 8 (12 weeks before first frost).

Samplantering

✅ Spenat ✅ Selleri ✅ Timjan✅ Bönor

❌ Tomater❌ Jordgubbar❌ Ärtor

Blomkål 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 Blomkål

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

Start Free Blomkål Growing Guide