When to plant sweet corn 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 sweet corn.
Sow in the bedMay 29
Start pickingAug 12
Your sweet corn calendar for zone 3b
- May 29: Sow sweet corn seeds in the bed
- Aug 12: 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.
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.
Plan your raised bed in 3D. Pick your bed size and material, choose your plants, and get a printable plan with measurements, a shopping list and planting dates for your ZIP code. Free, no sign-up.
Open the free planner →