When should I plant Rhubarb in Zone 4b?

Start Rhubarb seeds indoors around 20 lut.. Transplant outdoors after 3 kwi.. Expect first harvest around 3 kwi..

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is 1 maj. The first fall frost averages 5 paź., 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.

Uprawa Rhubarb w Strefie 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Rhubarb in this zone. Ostatni przymrozek: 1 maj. Pierwszy przymrozek: 5 paź..

Planting Calendar

Indoor

Outdoor

Harvest

20 lut.5 paź.

Season: 1 maj – 5 paź. (157 dni)

Strefa4b

Ostatni przymrozek1 maj

Pierwszy przymrozek5 paź.

Sezon157 dni

Zbiory90 dni

SłońcePełne słońce

When to Plant Rhubarb in Zone 4b

Start Seeds Indoors: 20 lut.

Start Rhubarb seeds indoors around 20 lut. (10 tygodni przed ostatnim mrozem). Optimal germination temperature: 65F. Germinates in 7-21 days.

Transplant Outdoors: 3 kwi.

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

Harvest: 3 kwi.

First harvest approximately 3 kwi. (~365 dni from transplant). Continue harvesting until first frost (5 paź.). Rhubarb can overwinter in mild climates for continued harvest.

Rhubarb w Innych Strefach

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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