When should I plant Hành tây in Zone 9b?

Start Hành tây seeds indoors around 30 Th12. Transplant outdoors after 10 Th2. Expect first harvest around 1 Th5.

What is the last frost date for Zone 9b?

The average last spring frost date for Zone 9b is 10 Th3. The first fall frost averages 15 Th11, giving a 250-day growing season.

Can I grow Hành tây in Zone 9b?

Yes. Hành tây needs 110 days to harvest. Zone 9b has a 250-day growing season, which is sufficient.

🧅

🧅 Growing Hành tây in Zone 9b

Zone 9b has warm winters and an extended growing season -- excellent for heat-loving crops like Hành tây. Sương giá cuối: 10 Th3. Sương giá đầu: 15 Th11.

Planting Calendar

Indoor

Outdoor

Harvest

30 Th1215 Th11

Season: 10 Th3 – 15 Th11 (250 ngày)

Vùng9b

Sương giá cuối10 Th3

Sương giá đầu15 Th11

Mùa vụ250 ngày

Thu hoạch110 ngày

Ánh sángNắng hoàn toàn

When to Plant Hành tây in Zone 9b

Start Seeds Indoors: 30 Th12

Start Hành tây seeds indoors around 30 Th12 (10 tuần trước sương giá cuối). Optimal germination temperature: 70F. Germinates in 7-14 days.

Transplant Outdoors: 10 Th2

Transplant Hành tây seedlings outdoors after 10 Th2. Wait until soil temperature reaches 45F. Space plants at 9/m² (10cm khoảng cách). Harden off plants for a week before moving outside.

Harvest: 1 Th5

First harvest approximately 1 Th5 (~80 ngày from transplant). Continue harvesting until first frost (15 Th11).

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