When should I plant Cà chua in Zone 4b?

Start Cà chua seeds indoors around 20 Th3. Transplant outdoors after 15 Th5. Expect first harvest around 19 Th7.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is 1 Th5. The first fall frost averages 5 Th10, giving a 157-day growing season.

Can I grow Cà chua in Zone 4b?

Yes. Cà chua needs 75 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

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🍅 Growing Cà chua in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Cà chua in this zone. Sương giá cuối: 1 Th5. Sương giá đầu: 5 Th10.

Planting Calendar

Indoor

Outdoor

Harvest

20 Th35 Th10

Season: 1 Th5 – 5 Th10 (157 ngày)

Vùng4b

Sương giá cuối1 Th5

Sương giá đầu5 Th10

Mùa vụ157 ngày

Thu hoạch75 ngày

Ánh sángNắng hoàn toàn

When to Plant Cà chua in Zone 4b

Start Seeds Indoors: 20 Th3

Start Cà chua seeds indoors around 20 Th3 (6 tuần trước sương giá cuối). Optimal germination temperature: 80F. Germinates in 6-14 days.

Transplant Outdoors: 15 Th5

Transplant Cà chua seedlings outdoors after 15 Th5. Wait until soil temperature reaches 60F. Space plants at 1/m² (30cm khoảng cách). Harden off plants for a week before moving outside.

Harvest: 19 Th7

First harvest approximately 19 Th7 (~65 ngày from transplant). Continue harvesting until first frost (5 Th10).

Cây trồng đồng hành

✅ Tỏi✅ Măng tây✅ Húng quế✅ Cà rốt✅ Cúc vạn thọ✅ Ớt✅ Hành tây

❌ Khoai tây❌ Thì là Ý❌ Ngô❌ Su hào

Cà chua 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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