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What to Plant in December — USDA Zone 6b

Here's everything you can start, transplant, sow, and harvest in December in USDA Zone 6b. This zone has an average last spring frost around April 3 and first fall frost around October 25, with a growing season of approximately 205 days.

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Zone 6b Long season
205 days
Last Spring Frost April 3
205 growing days
First Fall Frost October 25

Where Is Zone 6b?

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There are no planting activities recommended for December in Zone 6b. Check nearby months for planting windows.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — local conditions may vary. 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.