Kale plant

When to plant kale in zone 4b

In zone 4b, the last spring frost usually comes around May 8 and the first fall frost around Sep 28. Here is when to plant kale.

Start seeds indoorsMar 27
Plant in the bedApr 10
Start pickingJun 4
Plant again for fallJul 21

Your kale calendar for zone 4b

Very cold-hardy. A light frost makes the leaves sweeter.

Spacing in a raised bed: 1 plant per square foot.

These dates are estimates from the average frost dates for zone 4b. Your local frost dates may be a week or two different. If a late cold snap is forecast, wait a few days.

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Kale in other zones

See everything to plant in zone 4b →