When should I plant Kubis in Zone 3a?

Start Kubis seeds indoors around Apr 10. Transplant outdoors after May 1. Expect first harvest around Jul 5.

What is the last frost date for Zone 3a?

The average last spring frost date for Zone 3a is May 22. The first fall frost averages Sep 12, giving a 113-day growing season.

Can I grow Kubis in Zone 3a?

Yes. Kubis needs 80 days to harvest. Zone 3a has a 113-day growing season, which is sufficient.

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🥬 Growing Kubis in Zone 3a

Zone 3a has harsh winters and a short growing season. Start Kubis early indoors to maximize your harvest window. Embun beku terakhir: May 22. Embun beku pertama: Sep 12.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 10Sep 12

Season: May 22 – Sep 12 (113 hari)

Zona3a

Embun beku terakhirMay 22

Embun beku pertamaSep 12

Musim113 hari

Panen80 hari

MatahariMatahari Penuh

When to Plant Kubis in Zone 3a

Start Seeds Indoors: Apr 10

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

Transplant Outdoors: May 1

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

Harvest: Jul 5

First harvest approximately Jul 5 (~65 hari from transplant). Continue harvesting until first frost (Sep 12).

Fall Planting: Jun 20

For a fall harvest, plant Kubis around Jun 20 (12 weeks before first frost).

Tanaman Pendamping

✅ Kentang✅ Mint ✅ Dill✅ Bawang Merah✅ Seledri

❌ Kacang❌ Tomat❌ Stroberi

Kubis 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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