Alabama planting calendar

When to put transplants or seed in the ground across Alabama, worked out from the average last spring and first fall frost for each USDA zone in the state, and what to line up before you commit ground. Written for farms that sell what they grow.

Your zone in Alabama: frost dates

Zones 7b–9a run through Alabama. Frost dates are long-term averages for planning, not a forecast for your field.

  • Zone 7b
    Huntsville and the Tennessee Valley
    Last frost
    ~April 8
    First frost
    ~October 22
    Frost-free days
    197
    Winter low
    5°F to 10°F
  • Zone 8a
    Birmingham and central Alabama
    Last frost
    ~March 28
    First frost
    ~November 5
    Frost-free days
    222
    Winter low
    10°F to 15°F
  • Zone 8b
    Montgomery, Mobile and the coastal plain
    Last frost
    ~March 15
    First frost
    ~November 15
    Frost-free days
    245
    Winter low
    15°F to 20°F
  • Zone 9a
    Gulf Shores and the Gulf coast
    Last frost
    ~February 25
    First frost
    ~December 1
    Frost-free days
    279
    Winter low
    20°F to 25°F

What it costs to grow an acre in Alabama

No published Alabama budget is transcribed here yet, so this page shows planting dates only — we do not publish cost figures we cannot source. Neighboring state budgets from NC State, UGA and UF/IFAS are on the crop profitability page.

Every figure is transcribed from a published land-grant enterprise budget for that state. These are planning budgets built from grower panels and dealer quotes, not surveys of what farms actually spent — your invoices override them everywhere they exist.

When to plant Alabama's main crops

Calculated for Zone 8a (Birmingham and central Alabama). Pick your own zone on the crop page.

  • Tomatoes
    April 4 – April 25
    June 25 – July 23
  • Peppers
    April 11 – May 2
    June 27 – July 25
  • Sweet corn
    March 28 – April 18
    June 18 – July 16
  • Cucumbers
    April 4 – April 25
    June 5 – July 3
  • Summer squash
    April 4 – April 25
    May 31 – June 28
  • Green beans (bush)
    March 28 – April 18
    May 29 – June 26
  • Watermelon
    April 11 – May 2
    July 12 – August 9
  • Sweet potatoes
    April 11 – May 2
    July 27 – August 24
  • Okra
    April 11 – May 2
    June 17 – July 15
  • Collards
    February 21 – March 14
    April 29 – May 27
  • Cabbage
    February 28 – March 21
    May 21 – June 18
  • Broccoli
    February 28 – March 21
    May 11 – June 8

What zone is my farm?

  • HuntsvilleZone 7b
  • BirminghamZone 8a
  • MontgomeryZone 8b
  • MobileZone 8b
  • Gulf ShoresZone 9a

If your farm sits in a zone that is not listed here, start from the calendar index and pick the closest match, then confirm with your county extension office.

Before you commit ground

A planting date tells you when a crop can grow — not whether it pays. Work out your breakeven price, then line up who is buying before you plant.

Alabama planting and cost questions

What USDA planting zone is Huntsville, Alabama?
The calendar carries Huntsville in Zone 7b. Average last spring frost is around April 8 and average first fall frost around October 22, which is about 197 frost-free days.
What USDA planting zone is Birmingham, Alabama?
The calendar carries Birmingham in Zone 8a. Average last spring frost is around March 28 and average first fall frost around November 5, which is about 222 frost-free days.
When should I plant tomatoes in Alabama?
In Zone 8a (Birmingham and central Alabama), April 4 – April 25 june 25 – july 23

Other state pages

Dates are calculated from average first and last frost dates for each zone. Your microclimate, elevation and soil temperature can shift any window by a week or more — treat these as starting points and keep your own records.