When should I plant Oải hương in Zone 4a?

Start Oải hương seeds indoors around 24 Th2. Transplant outdoors after 12 Th5. Expect first harvest around 10 Th8.

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.

Can I grow Oải hương in Zone 4a?

Yes. Oải hương needs 100 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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🟣 Growing Oải hương in Zone 4a

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

Planting Calendar

Indoor

Outdoor

Harvest

24 Th21 Th10

Season: 5 Th5 – 1 Th10 (149 ngày)

Vùng4a

Sương giá cuối5 Th5

Sương giá đầu1 Th10

Mùa vụ149 ngày

Thu hoạch100 ngày

Ánh sángNắng hoàn toàn

When to Plant Oải hương in Zone 4a

Start Seeds Indoors: 24 Th2

Start Oải hương seeds indoors around 24 Th2 (10 tuần trước sương giá cuối). Optimal germination temperature: 70F. Germinates in 14-28 days.

Transplant Outdoors: 12 Th5

Transplant Oải hương seedlings outdoors after 12 Th5. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm khoảng cách). Harden off plants for a week before moving outside.

Harvest: 10 Th8

First harvest approximately 10 Th8 (~90 ngày from transplant). Continue harvesting until first frost (1 Th10). Oải hương can overwinter in mild climates for continued harvest.

Cây trồng đồng hành

✅ Hoa hồng✅ Cà tím✅ Cà chua✅ Bắp cải

Oải hương 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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