Lafayette, LA Frost Dates
Average frost dates, USDA hardiness zone, and growing season length for Lafayette, Louisiana.
Gardening in Lafayette
Cajun Country's heart beats in Lafayette, where the food culture is so deep that growing ingredients isn't a hobby — it's a cultural imperative.
Zone 9a with 289 frost-free days. The Vermilion River parish is fertile and flat. Subtropical humidity promotes growth and disease in equal measure.
Cajun cooking demands specific ingredients — the holy trinity (onion, celery, bell pepper), cayenne, and fresh herbs — that every Lafayette garden worthy of the name produces. The Hub City Farmers Market connects the community.
What This Means for Lafayette Gardeners
The average last spring frost in Lafayette is around February 15, and the average first fall frost arrives around December 1. That gives you approximately 289 frost-free days to work with.
289 days is a long, productive season that supports two full rounds of warm-season crops plus continuous cool-season production through your mild winter. Most frost-sensitive crops can be transplanted by February 15, giving them months to produce before fall. Your winter garden is the real advantage — growing fresh vegetables in December and January while northern gardeners browse seed catalogs.
These dates are based on NOAA 30-year Climate Normal data for the Lafayette area. Your actual frost dates could shift 2-3 weeks in either direction in any given year. Learn more about our data sources.
What to Grow in Lafayette
With 289 frost-free days, Lafayette can grow nearly anything — including tropical and subtropical plants that most of the country can only dream about. Your prime vegetable season runs from fall through spring; summer is for heat-lovers like okra, sweet potatoes, and peppers. Recommended starting points: cherry tomatoes, jalapeños, okra, sweet potatoes, basil, collard greens, tomatillos, and lemongrass.
See the full Louisiana planting guide for all 40 plants: Louisiana Planting Calendar. Or enter your zip code for exact planting dates personalized to Lafayette.
More About Zone 9A
Lafayette is in USDA Hardiness Zone 9A, which means average annual extreme minimum temperatures between 20°F to 25°F. View the full Zone 9A planting guide.
See the complete planting calendar for Louisiana: Louisiana Planting Calendar.
Other Cities in Louisiana
Frequently Asked Questions
These dates are based on NOAA's 30-year Climate Normal data for the Lafayette area. They represent historical averages, not predictions. In any given year, the actual last frost could be 2-3 weeks earlier or later. Microclimates within Lafayette (urban heat islands, hilltops, low-lying valleys) can also shift your local frost dates by a week or more.
You can plant cool-season crops (lettuce, kale, broccoli) from December 1 through February 15 — your cool season is your primary vegetable season. Warm-season crops like tomatoes and peppers go out in early spring. Tropical plants grow year-round. Enter your zip code for exact dates for every plant.