When should I plant Søtpotet in Zone 4b?

Start Søtpotet seeds indoors around Mar 6. Transplant outdoors after May 22. Expect first harvest around Aug 20.

What is the last frost date for Zone 4b?

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

Can I grow Søtpotet in Zone 4b?

Yes. Søtpotet needs 100 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

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🍠 Growing Søtpotet in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Søtpotet in this zone. Siste frost: May 1. Første frost: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 6Oct 5

Season: May 1 – Oct 5 (157 dager)

Sone4b

Siste frostMay 1

Første frostOct 5

Sesong157 dager

Høst100 dager

SolFull Sol

When to Plant Søtpotet in Zone 4b

Start Seeds Indoors: Mar 6

Start Søtpotet seeds indoors around Mar 6 (8 uker før siste frost). Optimal germination temperature: 85F. Germinates in 14-21 days.

Transplant Outdoors: May 22

Transplant Søtpotet seedlings outdoors after May 22. Wait until soil temperature reaches 65F. Space plants at 1/m² (30cm avstand). Harden off plants for a week before moving outside.

Harvest: Aug 20

First harvest approximately Aug 20 (~90 dager from transplant). Continue harvesting until first frost (Oct 5).

Samdyrking

✅ Dill ✅ Oregano ✅ Timian

Søtpotet 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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