🌽 When to Plant Corn

When should I plant corn?

Plant corn outdoors 2 weeks after last frost.

Is corn frost sensitive?

Yes — Corn is frost-sensitive and will be damaged or killed by temperatures at or below 32°F. Wait until all frost danger has passed and nighttime lows are consistently above 55°F.

What temperature does corn need?

Corn grows best between 65°F and 95°F. It can survive down to 55°F, but growth slows significantly below 65°F. Warm nights are especially important once fruiting begins.

How long does corn take to grow?

Corn typically takes 60–100 days from transplant (or direct sow) to first harvest.

Is it too cold to plant corn?

It is too cold to plant Corn outdoors when nighttime temperatures are falling below 55°F. Corn is frost-sensitive, so a single freeze will kill it — wait until your area's last frost date has passed and nights are reliably above 55°F. Use CanIPlant to check your local 7-day forecast and get a real-time answer for your ZIP code.

Is it too hot to plant corn?

Corn starts to struggle when temperatures climb above 95°F. As a warm-season crop, Corn enjoys heat but can experience blossom drop and reduced fruiting above 100°F. Consistent highs above that level may delay planting until temperatures moderate. CanIPlant checks your local forecast highs to flag this automatically.

Any tips for growing corn?

Needs warm soil. Plant in blocks.