When should I plant Rhubarb in Zone 6b?

Start Rhubarb seeds indoors around 4 Th2. Transplant outdoors after 18 Th3. Expect first harvest around 18 Th3.

What is the last frost date for Zone 6b?

The average last spring frost date for Zone 6b is 15 Th4. The first fall frost averages 22 Th10, giving a 190-day growing season.

Can I grow Rhubarb in Zone 6b?

Yes. Rhubarb needs 90 days to harvest. Zone 6b has a 190-day growing season, which is sufficient.

Growing Rhubarb in Zone 6b

Zone 6b has mild winters and a long growing season -- good conditions for Rhubarb. Sương giá cuối: 15 Th4. Sương giá đầu: 22 Th10.

Planting Calendar

Indoor

Outdoor

Harvest

4 Th222 Th10

Season: 15 Th4 – 22 Th10 (190 ngày)

Vùng6b

Sương giá cuối15 Th4

Sương giá đầu22 Th10

Mùa vụ190 ngày

Thu hoạch90 ngày

Ánh sángNắng hoàn toàn

When to Plant Rhubarb in Zone 6b

Start Seeds Indoors: 4 Th2

Start Rhubarb seeds indoors around 4 Th2 (10 tuần trước sương giá cuối). Optimal germination temperature: 65F. Germinates in 7-21 days.

Transplant Outdoors: 18 Th3

Transplant Rhubarb seedlings outdoors after 18 Th3. Wait until soil temperature reaches 40F. Space plants at 1/m² (30cm khoảng cách). Harden off plants for a week before moving outside.

Harvest: 18 Th3

First harvest approximately 18 Th3 (~365 ngày from transplant). Continue harvesting until first frost (22 Th10). Rhubarb can overwinter in mild climates for continued harvest.

Rhubarb 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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