When to plant in Troy, AL
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Troy, Alabama — all computed from Troy's nearest NOAA weather station.
Troy enjoys a long ~256-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. Zone 8b means many perennials and even some tender shrubs overwinter in Troy, while your frost dates still decide when annuals go out.
Frost probability
TROY · 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 Troy’s own odds, recorded at TROY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 14 | Mar 24 | Mar 2 | Oct 28 | Nov 9 | Nov 29 |
| 32°F | Mar 30 | Mar 10 | Feb 15 | Nov 4 | Nov 21 | Dec 14 |
| 28°F | Mar 17 | Feb 24 | Jan 26 | Nov 13 | Dec 7 | Jan 8 |
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 Troy, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 8 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.
Troy planting FAQ
When is the last spring frost in Troy, AL?
Plan for the last spring frost in Troy around March 10 (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 Troy, AL?
In Troy, the first 32°F freeze of fall lands around November 21 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Troy in?
Troy is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Troy?
There are roughly 256 frost-free days in Troy (a long growing season), running from the average last frost around March 10 to the first fall frost near November 21.
When should I plant tomatoes in Troy?
In Troy, start tomato seeds indoors around January 13–January 27, then transplant seedlings outdoors around March 17 once the danger of frost has passed.
Never miss a window in Troy
An email when it’s time to start seeds, transplant, and sow — timed to Troy’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Ozark · 49 km
- Enterprise · 54 km
- Pike Road · 54 km
- Montgomery · 67 km
- Eufaula · 78 km
- Dothan · 83 km
- Prattville · 85 km
- Millbrook · 87 km
Frost dates recorded at TROY, 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 Troy, AL — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00018323. Retrieved from https://blissgarden.com/alabama/troy.