When to plant sweet corn in zone 9b
In zone 9b, the last spring frost usually comes around Feb 15 and the first fall frost around Dec 10. Here is when to plant sweet corn.
Sow in the bedMar 1
Start pickingMay 15
Your sweet corn calendar for zone 9b
- Mar 1: Sow sweet corn seeds in the bed
- May 15: Start picking sweet corn
Plant in a block, not one row, so the plants pollinate each other.
Spacing in a raised bed: 4 plants per square foot. In hot zones, plants may stop producing in the hottest weeks of summer and pick up again in early fall.
These dates are estimates from the average frost dates for zone 9b. 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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