When to plant in Hartselle, AL
USDA Zone 8aHartselle, Alabama frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Heads up: the nearest complete-normals station is about 15 km from Hartselle, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. Zone 8a means many perennials and even some tender shrubs overwinter in Hartselle, while your frost dates still decide when annuals go out.
Frost probability
DECATUR 4SE · 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 Hartselle’s own odds, recorded at DECATUR 4SE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 22 | Apr 5 | Mar 21 | Oct 16 | Oct 29 | Nov 11 |
| 32°F | Apr 9 | Mar 26 | Mar 5 | Oct 26 | Nov 7 | Nov 26 |
| 28°F | Mar 30 | Mar 12 | Feb 21 | Nov 4 | Nov 19 | Dec 10 |
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 Hartselle, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 27 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.
Hartselle planting FAQ
When is the last spring frost in Hartselle, AL?
Plan for the last spring frost in Hartselle around March 26 (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 Hartselle, AL?
In Hartselle, the first 32°F freeze of fall lands around November 7 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Hartselle in?
Hartselle is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Hartselle?
There are roughly 226 frost-free days in Hartselle (a long growing season), running from the average last frost around March 26 to the first fall frost near November 7.
When should I plant tomatoes in Hartselle?
In Hartselle, start tomato seeds indoors around January 29–February 12, then transplant seedlings outdoors around April 2 once the danger of frost has passed.
Never miss a window in Hartselle
An email when it’s time to start seeds, transplant, and sow — timed to Hartselle’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Decatur · 15 km
- Cullman · 31 km
- Madison · 34 km
- Huntsville · 37 km
- Athens · 38 km
- Meridianville · 58 km
- Albertville · 70 km
- Muscle Shoals · 72 km
Frost dates recorded at DECATUR 4SE, 15 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 Hartselle, AL — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00012209. Retrieved from https://blissgarden.com/alabama/hartselle.