When should I plant Rhubarb in Zone 4a?

Start Rhubarb seeds indoors around 24 фев.. Transplant outdoors after 7 апр.. Expect first harvest around 7 апр..

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is 5 май. The first fall frost averages 1 окт., giving a 149-day growing season.

Can I grow Rhubarb in Zone 4a?

Yes. Rhubarb needs 90 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

Выращивание Rhubarb в зоне 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Rhubarb in this zone. Последний заморозок: 5 май. Первый заморозок: 1 окт..

Planting Calendar

Indoor

Outdoor

Harvest

24 фев.1 окт.

Season: 5 май – 1 окт. (149 дней)

Зона4a

Последний заморозок5 май

Первый заморозок1 окт.

Сезон149 дней

Урожай90 дней

СолнцеПолное солнце

When to Plant Rhubarb in Zone 4a

Start Seeds Indoors: 24 фев.

Start Rhubarb seeds indoors around 24 фев. (10 недель до последнего заморозка). Optimal germination temperature: 65F. Germinates in 7-21 days.

Transplant Outdoors: 7 апр.

Transplant Rhubarb seedlings outdoors after 7 апр.. Wait until soil temperature reaches 40F. Space plants at 1/м² (30cm расстояние). Harden off plants for a week before moving outside.

Harvest: 7 апр.

First harvest approximately 7 апр. (~365 дней from transplant). Continue harvesting until first frost (1 окт.). Rhubarb can overwinter in mild climates for continued harvest.

Rhubarb в других зонах

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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