Warm-season crops
Sweet corn planting calendar and growing plan
Sweet corn needs a layout that supports pollination, not merely the maximum number of points that fit in a rectangle. Plan each sowing as a usable block.
Plan dates for Sweet corn
Editable exampleTransplant outside
A reviewed rule is not available for this action. StatusDirect sow
May 1, 2027 Earliest referenceDirect sowing and transplanting are alternative ways to start a crop. Keep the tasks that match your method.
Sources and conditions
A transplant method exists, but this record has not reviewed a numeric indoor-start duration.
- These are reviewed planning references. Check the variety, local soil and weather before acting; a frost date is not a forecast.
- This record provides direct sowing. A separate nursery period for transplant corn is not reviewed.
No numeric transplant schedule is reviewed for this direct-sowing record.
- These are reviewed planning references. Check the variety, local soil and weather before acting; a frost date is not a forecast.
- This record provides direct sowing. A separate nursery period for transplant corn is not reviewed.
This is a frost-boundary reference for warm soil, not a promise that every sweet-corn seed type can germinate then.
- These are reviewed planning references. Check the variety, local soil and weather before acting; a frost date is not a forecast.
- Sow after the frost-free boundary in warm soil. Untreated seed requires at least 65°F in the Minnesota guide.
A planning reference, not a weather forecast.
Match sowing to seed type
The frost boundary is combined with soil-warmth guidance. Different corn types and seed treatments have different requirements, so review the packet before using an early date.
Keep a pollination block
The selected source calls for at least four rows. If a bed fits only a long single row, reducing the row count is not an equivalent planting even when the arithmetic is correct.
Schedule complete batches
The succession interval can spread sowings, but each batch still needs enough plants in an appropriate block. The source does not provide a numeric first-frost cutoff for all varieties.
Questions growers ask
Why is the end date manual?
The selected succession chart gives an interval but no numeric frost cutoff. Variety maturity and local growing conditions must inform the final sowing date.
Sources and conditions
These sources describe particular climates and growing methods. Use the conditions alongside the numbers.
Succession Planting Charts for Vegetables ↗
General intervals under standard growing practices. Crop purpose and protected-cover exceptions matter; these are not harvest guarantees.
Growing sweet corn in home gardens ↗
Sweet corn spacing, blocks for pollination and seed-type-dependent soil temperatures.
How to Grow Sweet Corn in Your Garden ↗
Sweet corn after the local frost-free date, with adequately warm soil; early covered sowing is not the default.