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Can You Grow Corn in New Hampshire?
US · USDA Zone 5b · zones 4a, 4b, 5a, 5b, 6a
Corn grows well here — plant in blocks after last frost for a summer harvest.
Plant zones
New Hampshire last frost
New Hampshire first frost
Days to harvest
When to plant Corn in New Hampshire
Direct sow
Harvest
Dates are approximate, based on New Hampshire's average frost dates. Your exact yard may vary by microclimate.
About Corn
Corn needs space warmth and wind-pollination — plant in blocks not rows for good pollination.
Direct sow after soil reaches 16°C. Plant in a 4x4 block minimum for wind pollination. Needs consistent water especially during tasselling. Not suitable for containers.
Gardening in New Hampshire
New Hampshire has a humid continental climate. Coastal areas are Zone 5b-6a; northern mountains are Zone 4a-5a. Short growing seasons but productive for cool-season crops and berries.
Frequently asked questions
Can you grow Corn in New Hampshire?
Corn grows well here — plant in blocks after last frost for a summer harvest.
What zone is New Hampshire?
New Hampshire spans USDA Zone 5b (4a, 4b, 5a, 5b, 6a).
When do you plant Corn in New Hampshire?
Plant Corn Apr 7, harvest Jun 6 – Jul 6.