When should I plant Hành tây in Zone 5b?

Start Hành tây seeds indoors around 17 Th2. Transplant outdoors after 31 Th3. Expect first harvest around 19 Th6.

What is the last frost date for Zone 5b?

The average last spring frost date for Zone 5b is 28 Th4. The first fall frost averages 8 Th10, giving a 163-day growing season.

Can I grow Hành tây in Zone 5b?

Yes. Hành tây needs 110 days to harvest. Zone 5b has a 163-day growing season, which is sufficient.

🧅

🧅 Growing Hành tây in Zone 5b

Zone 5b has cold winters and a moderate growing season. Timing is key for Hành tây in this zone. Sương giá cuối: 28 Th4. Sương giá đầu: 8 Th10.

Planting Calendar

Indoor

Outdoor

Harvest

17 Th28 Th10

Season: 28 Th4 – 8 Th10 (163 ngày)

Vùng5b

Sương giá cuối28 Th4

Sương giá đầu8 Th10

Mùa vụ163 ngày

Thu hoạch110 ngày

Ánh sángNắng hoàn toàn

When to Plant Hành tây in Zone 5b

Start Seeds Indoors: 17 Th2

Start Hành tây seeds indoors around 17 Th2 (10 tuần trước sương giá cuối). Optimal germination temperature: 70F. Germinates in 7-14 days.

Transplant Outdoors: 31 Th3

Transplant Hành tây seedlings outdoors after 31 Th3. Wait until soil temperature reaches 45F. Space plants at 9/m² (10cm khoảng cách). Harden off plants for a week before moving outside.

Harvest: 19 Th6

First harvest approximately 19 Th6 (~80 ngày from transplant). Continue harvesting until first frost (8 Th10).

Cây trồng đồng hành

✅ Dâu tây✅ Bắp cải✅ Củ dền✅ Rau diếp✅ Cà rốt✅ Cà chua

❌ Đậu❌ Đậu Hà Lan

Hành tây 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

Plan Your Garden Hành tây

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

Start Free Hành tây Growing Guide