When should I plant Khoai tây in Zone 4a?

Direct sow Khoai tây outdoors around 21 Th4. Expect first harvest around 20 Th7.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is 5 Th5. The first fall frost averages 1 Th10, giving a 149-day growing season.

Yes. Khoai tây needs 90 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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

Outdoor

Harvest

21 Th41 Th10

Season: 5 Th5 – 1 Th10 (149 ngày)

Vùng4a

Sương giá cuối5 Th5

Sương giá đầu1 Th10

Mùa vụ149 ngày

Thu hoạch90 ngày

Ánh sángNắng hoàn toàn

Direct sow Khoai tây seeds outdoors around 21 Th4. Wait until soil temperature reaches 45F. Space plants at 1/m² (30cm khoảng cách).

First harvest approximately 20 Th7 (~90 ngày from planting). Continue harvesting until first frost (1 Th10).

❌ Cà chua❌ Bí đỏ❌ Dưa chuột❌ Bí

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

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