When should I plant Kembang Kol in Zone 6b?

Start Kembang Kol seeds indoors around Mar 4. Transplant outdoors after Apr 1. Expect first harvest around May 31.

What is the last frost date for Zone 6b?

The average last spring frost date for Zone 6b is Apr 15. The first fall frost averages Oct 22, giving a 190-day growing season.

Can I grow Kembang Kol in Zone 6b?

Yes. Kembang Kol needs 75 days to harvest. Zone 6b has a 190-day growing season, which is sufficient.

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🥦 Growing Kembang Kol in Zone 6b

Zone 6b has mild winters and a long growing season -- good conditions for Kembang Kol. Embun beku terakhir: Apr 15. Embun beku pertama: Oct 22.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 4Oct 22

Season: Apr 15 – Oct 22 (190 hari)

Zona6b

Embun beku terakhirApr 15

Embun beku pertamaOct 22

Musim190 hari

Panen75 hari

MatahariMatahari Penuh

When to Plant Kembang Kol in Zone 6b

Start Seeds Indoors: Mar 4

Start Kembang Kol seeds indoors around Mar 4 (6 minggu sebelum embun beku terakhir). Optimal germination temperature: 70F. Germinates in 5-10 days.

Transplant Outdoors: Apr 1

Transplant Kembang Kol seedlings outdoors after Apr 1. Wait until soil temperature reaches 50F. Space plants at 1/m² (30cm jarak). Harden off plants for a week before moving outside.

Harvest: May 31

First harvest approximately May 31 (~60 hari from transplant). Continue harvesting until first frost (Oct 22).

Fall Planting: Jul 30

For a fall harvest, plant Kembang Kol around Jul 30 (12 weeks before first frost).

Tanaman Pendamping

✅ Bayam ✅ Seledri ✅ Thyme✅ Kacang

❌ Tomat❌ Stroberi❌ Kacang Polong

Kembang Kol 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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