When should I plant Col in Zone 4b?

Start Col seeds indoors around Mar 20. Transplant outdoors after Apr 10. Expect first harvest around Jun 14.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Col in Zone 4b?

Yes. Col needs 80 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

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🥬 Growing Col in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Col in this zone. Darrera gelada: May 1. Primera gelada: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 20Oct 5

Season: May 1 – Oct 5 (157 dies)

Zona4b

Darrera geladaMay 1

Primera geladaOct 5

Temporada157 dies

Collita80 dies

SolSol Ple

When to Plant Col in Zone 4b

Start Seeds Indoors: Mar 20

Start Col seeds indoors around Mar 20 (6 setmanes abans de l’última gelada). Optimal germination temperature: 70F. Germinates in 5-10 days.

Transplant Outdoors: Apr 10

Transplant Col seedlings outdoors after Apr 10. Wait until soil temperature reaches 45F. Space plants at 1/m² (30cm espaiat). Harden off plants for a week before moving outside.

Harvest: Jun 14

First harvest approximately Jun 14 (~65 dies from transplant). Continue harvesting until first frost (Oct 5).

Fall Planting: Jul 13

For a fall harvest, plant Col around Jul 13 (12 weeks before first frost).

Plantació Companya

✅ Patates✅ Menta ✅ Anet✅ Cebes✅ Api

❌ Mongetes❌ Tomàquets❌ Maduixes

Col 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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