When to plant in Millbrook, AL
USDA Zone 8bEverything below — frost dates, hardiness zone, and what to plant when in Millbrook, Alabama — is derived from the closest NOAA station with complete climate normals.
With about 245 frost-free days, Millbrook supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. Heads up: the nearest complete-normals station is about 23 km from Millbrook, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. Zone 8b means many perennials and even some tender shrubs overwinter in Millbrook, while your frost dates still decide when annuals go out.
Frost probability
MONTGOMERY AP · 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 Millbrook’s own odds, recorded at MONTGOMERY AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 16 | Mar 29 | Mar 5 | Oct 21 | Nov 3 | Nov 18 |
| 32°F | Mar 31 | Mar 13 | Feb 20 | Oct 31 | Nov 13 | Dec 1 |
| 28°F | Mar 19 | Feb 27 | Jan 30 | Nov 8 | Nov 25 | Dec 24 |
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 Millbrook, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 41 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.
Millbrook planting FAQ
When is the last spring frost in Millbrook, AL?
Millbrook's average last spring frost falls near March 13 — 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 Millbrook, AL?
In Millbrook, the first 32°F freeze of fall lands around November 13 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Millbrook in?
Millbrook is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Millbrook?
There are roughly 245 frost-free days in Millbrook (a long growing season), running from the average last frost around March 13 to the first fall frost near November 13.
When should I plant tomatoes in Millbrook?
In Millbrook, start tomato seeds indoors around January 16–January 30, then transplant seedlings outdoors around March 20 once the danger of frost has passed.
Never miss a window in Millbrook
An email when it’s time to start seeds, transplant, and sow — timed to Millbrook’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Prattville · 9 km
- Montgomery · 20 km
- Pike Road · 35 km
- Alexander City · 61 km
- Selma · 63 km
- Sylacauga · 77 km
- Calera · 77 km
- Auburn · 84 km
Frost dates recorded at MONTGOMERY AP, 23 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 Millbrook, AL — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00013895. Retrieved from https://blissgarden.com/alabama/millbrook.