Spinach plant

When to plant spinach in zone 3a

In zone 3a, the last spring frost usually comes around May 20 and the first fall frost around Sep 10. Here is when to plant spinach.

Sow in the bedApr 8
Start pickingMay 23
Plant again for fallJul 13

Your spinach calendar for zone 3a

A cool-weather crop. Plant early in spring and again in late summer.

Spacing in a raised bed: 9 plants per square foot.

These dates are estimates from the average frost dates for zone 3a. 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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Spinach in other zones

See everything to plant in zone 3a →