When to plant in Prairieville, LA
USDA Zone 9aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Prairieville, Louisiana — all computed from Prairieville's nearest NOAA weather station.
With about 307 frost-free days, Prairieville supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. These dates come from a station roughly 21 km away, the closest with full normals; terrain around Prairieville (elevation, water, pavement) can move your real frost dates a few days either way. In zone 9a, frost is a minor factor for Prairieville — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
CARVILLE 2 SW · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Prairieville’s own odds, recorded at CARVILLE 2 SW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 19 | Feb 28 | Feb 1 | Nov 6 | Nov 27 | Dec 20 |
| 32°F | Mar 10 | Feb 9 | Jan 12 | Nov 16 | Dec 13 | Jan 11 |
| 28°F | Feb 27 | Jan 27 | Dec 30 | Dec 4 | Jan 1 | Feb 1 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.
Full-year planting calendar
Each bar is the exact window to take a planting action in Prairieville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 28 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Prairieville planting FAQ
When is the last spring frost in Prairieville, LA?
Plan for the last spring frost in Prairieville around February 9 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Prairieville, LA?
The first fall frost in Prairieville typically arrives around December 13 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Prairieville in?
Prairieville is in USDA hardiness zone 9a. In zone 9a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Prairieville?
Prairieville has about 307 frost-free days — a long growing season — between the average last spring frost (February 9) and first fall frost (December 13).
When should I plant tomatoes in Prairieville?
For Prairieville, sow tomatoes indoors about December 15–December 29 and move the seedlings out around February 16, after the last spring frost.
Never miss a window in Prairieville
An email when it’s time to start seeds, transplant, and sow — timed to Prairieville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at CARVILLE 2 SW, 21 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Prairieville, LA — Frost Dates & Zone 9a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00161565. Retrieved from https://blissgarden.com/louisiana/prairieville.