When should I plant Rhubarb in Zone 4b?

Start Rhubarb seeds indoors around 2월 20일. Transplant outdoors after 4월 3일. Expect first harvest around 4월 3일.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is 5월 1일. The first fall frost averages 10월 5일, giving a 157-day growing season.

Can I grow Rhubarb in Zone 4b?

Yes. Rhubarb needs 90 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

재배 Rhubarb 존 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Rhubarb in this zone. 마지막 서리: 5월 1일. 첫 서리: 10월 5일.

Planting Calendar

Indoor

Outdoor

Harvest

2월 20일10월 5일

Season: 5월 1일 – 10월 5일 (157 일)

구역4b

마지막 서리5월 1일

첫 서리10월 5일

시즌157 일

수확90 일

일조전일조

When to Plant Rhubarb in Zone 4b

Start Seeds Indoors: 2월 20일

Start Rhubarb seeds indoors around 2월 20일 (10 주 전 (마지막 서리)). Optimal germination temperature: 65F. Germinates in 7-21 days.

Transplant Outdoors: 4월 3일

Transplant Rhubarb seedlings outdoors after 4월 3일. Wait until soil temperature reaches 40F. Space plants at 1/m² (30cm 간격). Harden off plants for a week before moving outside.

Harvest: 4월 3일

First harvest approximately 4월 3일 (~365 일 from transplant). Continue harvesting until first frost (10월 5일). Rhubarb can overwinter in mild climates for continued harvest.

Rhubarb 다른 존

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

정원 계획 Rhubarb

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

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