Alabama Lawn Care Calendar 2026: Fall & Spring Task Dates
Every lawn and garden task dated to Alabama's frost calendar and live soil temperature: warm-season grasses, extension-service timing.
Next up in Alabama: overseed, window open through October 20The Alabama fall lawn season at a glance
Live · soil temp updates hourlyAlabama's warm-season lawns take their last nitrogen by early September — ACES is explicit that late fall fertilizer pushes tender growth that winter-kills and invites large patch disease.
What to do in Alabama right now
Tasks whose window is open or opening within three weeks, checked against live soil temperature at Birmingham (live reading unavailable, calendar only). Enter your ZIP for your own soil reading.
Overseed
Do it nowInside the typical window (September 26 – October 20) (ryegrass for winter color only — do not seed bermuda or zoysia now).
How to overseedCover crop / winter rye
Do it nowInside the typical window (September 29 – November 3).
Bring houseplants in
Coming upOpens in about 18 days — on October 27.
Plant garlic
Coming upOpens in about 18 days — on October 27.
How to plant garlicCovers all 50 states. Windows are frost-date typicals; live soil temperature adjusts the soil-gated tasks.
Alabama fall lawn & garden calendar
| Task | Typical window | Status | Why now |
|---|---|---|---|
| Fall pre-emergent | August 27 to September 26 | Done for the year | Stops winter annual weeds — annual bluegrass (Poa annua), henbit, chickweed — from germinating as soil cools through 70°F. |
| Bring houseplants in | October 27 to November 9 | Coming up | Tropical houseplants are damaged by nights in the 40s, well before any frost — and a sudden move from 50°F nights to a 70°F house causes leaf drop. |
| Core aerate | May 21 to July 5 | Done for the year | Relieves compaction and opens thatch so water, air, and fertilizer reach the roots — and it is the best seedbed prep for overseeding. |
| Overseed | September 26 to October 20 | Do it now | Warm soil plus cool air is the best germination combination of the year, and new seedlings need 6–8 weeks of growth before the first hard freeze. |
| Cover crop / winter rye | September 29 to November 3 | Do it now | A cover crop holds soil, scavenges leftover nitrogen, and adds organic matter over winter — bare vegetable beds lose both soil and fertility to winter rain. |
| Fall fertilizer | August 5 to September 5 | Done for the year | Fall nitrogen builds roots and carbohydrate reserves instead of top growth — the single most valuable feeding of the year for cool-season turf. |
| Plant garlic | October 27 to December 1 | Coming up | Garlic needs 4–6 weeks to root before the ground freezes but should not push much top growth — planting around the first frost, 2 weeks either side, is the sweet spot. |
| Final mow | November 3 to December 1 | Later | Grass left long under snow mats and invites snow mold; cut too short it loses winter insulation. The last cut at 2–2.5 inches is the compromise. |
| Winterize sprinklers | November 7 to December 1 | Later | Water left in lines and backflow preventers expands when it freezes and splits pipes, valves, and heads — a repair that costs more than the whole winterization. |
| Plant tulips & bulbs | November 24 to January 5 | Later | Bulbs root in cool soil and need 12–14 weeks of chilling below 45°F to flower — planted into warm soil they rot or sprout early. |
Alabama spring lawn calendar
Spring runs off the last frost (March 22) and, for pre-emergent, off soil temperature. The crabgrass trigger is 55°F at 1 to 2 inches for four or five days, not a date.
| Task | Typical window | Why then |
|---|---|---|
| Spring pre-emergent | February 15 to March 15 | Crabgrass germinates when soil at 1–2 inches holds 55°F for 4–5 consecutive days. Pre-emergent has to be in place BEFORE that — it has no effect on crabgrass that has already sprouted. |
| First mow | March 15 to April 12 | The first cut removes winter-damaged tips and signals the lawn to tiller and thicken — but mowing soggy soil ruts it, and scalping stresses turf before roots are working. |
| Spring grass seed | May 3 to June 14 | Spring seeding is second-best (fall is better) because seedlings face summer heat and crabgrass, but it is the only window for warm-season seed, which needs 65–70°F soil. |
| First spring fertilizer | May 3 to May 31 | Feeding too early pushes leaf growth ahead of root growth and feeds weeds — wait until the lawn is actively growing and has been mowed 2–3 times (cool-season) or is fully green (warm-season). |
Soil temperature and frost countdown across Alabama
| City | Soil temp now (6 cm) | Typical first frost | Days to first frost | Typical last frost |
|---|---|---|---|---|
| Birmingham | loading… | November 8 | 30 | March 24 |
| Huntsville | loading… | November 2 | 24 | April 1 |
| Mobile | loading… | November 28 | 50 | February 24 |
Soil temperature is modeled at 6 cm by Open-Meteo and read live in your browser; frost dates are NOAA 1991 to 2020 normals for each reference station.
Alabama lawn grasses and mowing heights
Alabama is a warm-season state. Common lawn grasses: Bermudagrass, centipede, zoysia, St. Augustine. Warm-season grasses grow from late spring to early fall, go straw-brown dormant at the first frost, and are never seeded in fall, only overseeded with ryegrass for winter color.
| Grass | Mowing height |
|---|---|
| Bermudagrass | 1 to 2 in |
| Zoysia | 1 to 2.5 in |
| St. Augustine | 3 to 4 in |
| Centipede | 1.5 to 2 in |
| Bahiagrass | 3 to 4 in |
Task-by-task guide for Alabama
Soil temperature, growing degree days, and the frost anchor
Soil temperature beats air temperature. Grass seed germinates from about 50°F soil, crabgrass from a sustained 55°F, warm-season seed from 65°F, and tulips want soil under 55°F so they root without sprouting. Soil at seed depth warms and cools far more slowly than the air above it, so a hot week in April or a cold snap in October moves the soil only a few degrees. That is why the soil-gated tasks on this page defer to the live reading over the calendar.
Growing degree days (GDD) are how turf scientists track it: daily heat accumulated above a base (usually 50°F). Crabgrass germination, for instance, lines up with roughly 200 GDD base 50°F in spring, the same signal as forsythia finishing bloom. The frost calendar is the long-run average of all that heat accounting.
Why first frost anchors the fall. Most fall tasks are really a countdown to the first hard freeze: seedlings need 6 to 8 weeks of growth before it, garlic needs 4 to 6 weeks of rooting, cool-season fertilizer needs 2 to 4 weeks of uptake, and irrigation has to be drained before it. (Warm-season fertilizer is the exception: Southern extension programs cut nitrogen off on a calendar date, not a frost offset, because the Deep South frost arrives long after the grass stops growing.) Alabama's typical first frost is November 10; see the Alabama frost dates page for the early/late brackets and city table.
Alabama lawn care FAQ
The rest of your Alabama fall
More Southeast lawn calendars
Windows are climatological typicals computed from NOAA 1991 to 2020 frost normals and grass-zone rules, cross-checked against Alabama Cooperative Extension System — Lawn & Garden guidance. Any single year runs ±2 weeks; live soil temperature (Open-Meteo, 6 cm) is modeled, not measured. National tool: fall planting calendar by ZIP → Hero image: “2022-10-26 08 11 53 Fallen Red Maple and Saucer Magnolia leaves on a lawn in autumn along Aquetong Lane in the Mountainview section of Ewing Township, Mercer County, New Jersey” by Famartin, CC BY-SA 4.0