When to plant in Terrytown, LA
USDA Zone 9bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Terrytown, Louisiana — all computed from Terrytown's nearest NOAA weather station.
With about 333 frost-free days, Terrytown supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. Zone 9b is warm enough that Terrytown can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
The average first fall frost in Terrytown is now 8 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
TERRYTOWN 3S · 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 Terrytown’s own odds, recorded at TERRYTOWN 3S.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 16 | Feb 22 | Jan 23 | Nov 17 | Dec 9 | Jan 7 |
| 32°F | Mar 6 | Feb 1 | Jan 2 | Dec 1 | Dec 31 | Jan 29 |
| 28°F | Feb 26 | Jan 23 | Dec 29 | Dec 20 | Jan 8 | Feb 9 |
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 Terrytown, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 10 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.
Terrytown planting FAQ
When is the last spring frost in Terrytown, LA?
Terrytown's average last spring frost falls near February 1 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Terrytown, LA?
In Terrytown, the first 32°F freeze of fall lands around December 31 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Terrytown in?
Terrytown is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Terrytown?
There are roughly 333 frost-free days in Terrytown (a long growing season), running from the average last frost around February 1 to the first fall frost near December 31.
When should I plant tomatoes in Terrytown?
In Terrytown, start tomato seeds indoors around December 7–December 21, then transplant seedlings outdoors around February 8 once the danger of frost has passed.
Never miss a window in Terrytown
An email when it’s time to start seeds, transplant, and sow — timed to Terrytown’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Gretna · 2 km
- Timberlane · 3 km
- Harvey · 4 km
- Belle Chasse · 5 km
- Chalmette · 8 km
- Marrero · 8 km
- Woodmere · 9 km
- Estelle · 9 km
Frost dates recorded at TERRYTOWN 3S, 1 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 Terrytown, LA — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00168941. Retrieved from https://blissgarden.com/louisiana/terrytown.