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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.

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

Where Is Zone 6b?

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: April 2026.