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What to Plant in March in New Hampshire

Here's what you can plant in New Hampshire during March. Since New Hampshire spans multiple USDA zones, planting dates vary by location. Find your zone below.

Zone 6a

View full Zone 6a planting guide for March

Direct Sow

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.