When to plant Swiss chard in zone 3b
In zone 3b, the last spring frost usually comes around May 15 and the first fall frost around Sep 15. Here is when to plant Swiss chard.
Sow in the bedMay 1
Start pickingJun 25
Plant again for fallJul 8
Your swiss chard calendar for zone 3b
- May 1: Sow swiss chard seeds in the bed
- Jun 25: Start picking Swiss chard
- Jul 8: Sow swiss chard seeds again for a fall crop
Handles both heat and cold. Cut outer stalks and it regrows all season.
Spacing in a raised bed: 4 plants per square foot.
These dates are estimates from the average frost dates for zone 3b. 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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