What to Grow in Hardiness Zone 9b in December
December in Central Florida (USDA Zone 9b) brings mild 70°F days and cool nights—the ideal window for winter vegetables, herbs, and flowers.
Zone 9b (Orlando, Tampa, Lakeland, Daytona & Central FL): Avg. winter minimum 25°F to 30°F • Frost window: Mid-Dec – Mid-Feb
December in Central Florida (USDA Zone 9b) brings mild 70°F days and cool nights—the ideal window for winter vegetables, herbs, and flowers.
Unlike northern states that follow a single spring-to-autumn growing calendar, Florida spans four distinct climatic bands—from temperate North Florida and the Panhandle (Zones 8a and 8b) through transitional North-Central and Central Florida (Zones 9a and 9b) down to subtropical South Florida (Zones 10a and 10b) and the tropical Florida Keys (Zone 11a). Knowing your specific sub-zone and planting month is the difference between harvesting crisp, sweet brassicas all winter and watching cool-season crops bolt in sudden warm spells.
| Florida Zone | Key Cities & Regions | Avg. Winter Low | Typical Frost Window | Filter Guides |
|---|---|---|---|---|
| Zone 8a | Western Panhandle & Northern Border | 10°F to 15°F | Mid-Nov – Late Mar | View Zone 8a → |
| Zone 8b | Tallahassee, Pensacola & North Florida | 15°F to 20°F | Late Nov – Mid-Mar | View Zone 8b → |
| Zone 9a | Jacksonville, Gainesville, Ocala & St. Augustine | 20°F to 25°F | Dec – Late Feb | View Zone 9a → |
| Zone 9b | Orlando, Tampa, Lakeland, Daytona & Central FL | 25°F to 30°F | Mid-Dec – Mid-Feb | View Zone 9b → |
| Zone 10a | Sarasota, Fort Myers, Vero Beach & Naples | 30°F to 35°F | Occasional Jan frost | View Zone 10a → |
| Zone 10b | Miami, Fort Lauderdale, West Palm & Homestead | 35°F to 40°F | Frost-free subtropical | View Zone 10b → |
| Zone 11a | Florida Keys & Southernmost Coastal Strip | 40°F to 45°F | Year-round tropical | View Zone 11a → |
Across most of the Sunshine State, successful organic gardeners divide the year into three distinct planting windows rather than one:
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