Birmingham, AL · zone 8a · ~232 frost-free days
When to plant in Birmingham: frost dates and zone 8a.
In Birmingham, the typical last spring frost lands around Mar 23 and the first fall frost around Nov 10, giving you about 232 frost-free days. Cool-season crops go out before the last frost; warm-season crops wait until after it.
The 2026 windows
Sow dates for Birmingham, keyed to your frost.
| Crop | Start indoors | Spring sow / set out | Fall sow |
|---|---|---|---|
| Tomato, slicing | Feb 16 to Apr 18 | Mar 30 to May 30 | — |
| Lettuce, leaf | — | Feb 13 to Mar 30 | Aug 27 to Oct 26 |
| Carrot | — | Feb 13 to Mar 18 | Aug 15 to Sep 10 |
| Bush Bean | — | Mar 23 to May 13 | Jul 27 to Aug 29 |
| Cucumber, slicing | — | Mar 30 to Jun 29 | Jul 10 to Aug 10 |
| Pepper, bell | Feb 25 to Apr 18 | Apr 8 to May 30 | — |
| Kale | Jan 2 to Jan 30 | Feb 13 to Mar 13 | Aug 10 to Sep 25 |
| Spinach | — | Jan 30 to Mar 13 | Aug 27 to Oct 15 |
Birmingham sits in Zone 8a, but two gardens in the same city can be a week or two apart. The planner works from your ZIP code's frost dates, not the zone, so the dates land right for your block, not the metro average.
Build your Birmingham garden plan.
Tell the free planner what you want to eat and who you're feeding. It returns plant counts, spacing, and frost-safe sow dates for ZIP 35203 in about 60 seconds.
Birmingham planting questions
What planting zone is Birmingham, AL?+
Birmingham is in USDA hardiness zone 8a. Growing zone, gardening zone, and planting zone all mean the same thing: the USDA number, 8a here. It tells you what survives winter, not when to plant. Frost dates set your planting time, and the free planner uses your exact ZIP code's frost dates, which can differ by weeks across one metro.
When is the last frost date in Birmingham?+
The typical last spring frost in Birmingham, AL is around Mar 23. That is an average from local history, not a guarantee, so tender crops like tomatoes and peppers are safer with a week of buffer after it.
When is the first frost date in Birmingham?+
The typical first fall frost in Birmingham, AL arrives around Nov 10, closing a growing season of roughly 232 frost-free days. Count backward from it to find the last date a fall crop can still finish.
What can I plant now in Birmingham?+
It depends on the date. Cool-season crops like lettuce, kale, and spinach go out weeks before the last frost; warm-season crops like tomatoes and peppers wait until after Mar 23. The table above shows each crop's window; the free planner turns your ZIP into an exact, dated calendar.