When to plant in Youngsville, LA
USDA Zone 9aYoungsville, Louisiana frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
A generous ~285-day season lets Youngsville gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. In zone 9a, frost is a minor factor for Youngsville — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
LAFAYETTE 13 SE · 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 Youngsville’s own odds, recorded at LAFAYETTE 13 SE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 31 | Mar 8 | Feb 10 | Nov 1 | Nov 16 | Dec 6 |
| 32°F | Mar 16 | Feb 19 | Jan 17 | Nov 9 | Dec 1 | Jan 2 |
| 28°F | Mar 2 | Jan 30 | Dec 27 | Nov 20 | Dec 19 | Jan 26 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Youngsville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 12 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.
Youngsville planting FAQ
When is the last spring frost in Youngsville, LA?
Plan for the last spring frost in Youngsville around February 19 (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 Youngsville, LA?
In Youngsville, the first 32°F freeze of fall lands around December 1 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Youngsville in?
Youngsville is in USDA hardiness zone 9a. In zone 9a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Youngsville?
Youngsville has about 285 frost-free days — a long growing season — between the average last spring frost (February 19) and first fall frost (December 1).
When should I plant tomatoes in Youngsville?
For Youngsville, sow tomatoes indoors about December 25–January 8 and move the seedlings out around February 26, after the last spring frost.
Never miss a window in Youngsville
An email when it’s time to start seeds, transplant, and sow — timed to Youngsville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at LAFAYETTE 13 SE, 12 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 Youngsville, LA — Frost Dates & Zone 9a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053960. Retrieved from https://blissgarden.com/louisiana/youngsville.