Thibodaux 4 SE, LA Lawn Care Calendar

Every timing-sensitive lawn job in Thibodaux 4 SE, timed to the local climate record — not a national average.

Turf region
Warm-season
Bermuda, Zoysia, St. Augustine, centipede, bahia, buffalo
Last spring frost
Feb 5
median, 1991–2020
First fall frost
Dec 14
median, 1991–2020
Growing stretch
312 days
frost to frost
TaskThibodaux 4 SE windowWhy then
Crabgrass pre-emergent Jan 15 – Feb 5 Southern soil warms early — don’t be late
Seed / sod / establish Feb 19 – Mar 5 Soil 65–70°F; a full season to mature
First feeding Feb 26 – Mar 19 At full green-up, not before
Aerate / dethatch Mar 5 – Apr 2 Peak growth heals the disturbance fast
Last nitrogen Oct 19 – Nov 2 6–8 weeks before frost — then stop
Growth stops / final mow Nov 30 – Dec 21 Dormancy arrives with first frost

Anchored to NOAA 1991–2020 climate normals at the THIBODAUX 4 SE station. Windows are estimates — soil temperature is the real trigger, especially for pre-emergent. Check your own ZIP with the lawn calendar lookup.

Thibodaux 4 SE lawn care, month by month

MonthTasks
January Apply crabgrass pre-emergent
February Apply crabgrass pre-emergent · Seed, sod, or plug new grass · First feeding at full green-up
March Seed, sod, or plug new grass · First feeding at full green-up · Aerate / dethatch
April Aerate / dethatch
May Peak growth — regular mowing, about 1″ of water a week
June Peak growth — regular mowing, about 1″ of water a week
July Peak growth — regular mowing, about 1″ of water a week
August Peak growth — regular mowing, about 1″ of water a week
September Peak growth — regular mowing, about 1″ of water a week
October Last nitrogen of the year
November Last nitrogen of the year · Growth stops — final mow
December Growth stops — final mow

Reading the Thibodaux 4 SE lawn year

Thibodaux 4 SE's lawn year runs on warmth: the lawn wakes after the last frost around Feb 5, hits full stride in midsummer, and goes dormant with the first frost around Dec 14. The two dates to respect most are the pre-emergent deadline in late winter — southern soil warms early — and the last-nitrogen cutoff 6–8 weeks before frost, which protects the lawn from winter injury.

Grasses that fit Thibodaux 4 SE

Frequently asked questions

When should I plant warm-season grass in Thibodaux 4 SE?

Seed, sod, or plug Bermuda, Zoysia, and other warm-season grasses in late spring — around Feb 19 – Mar 5 in Thibodaux 4 SE, once soil has warmed well past the last frost. That gives new grass a full growing season to mature before its first winter dormancy.

When do I put down crabgrass preventer in Thibodaux 4 SE?

Aim for Jan 15 – Feb 5 — the estimated stretch when Thibodaux 4 SE soil approaches the ~55°F germination threshold, anchored to the average last frost (Feb 5). It's an estimate: a soil thermometer reading 50–55°F at 2″ depth for several days is the precise trigger, and pre-emergent must go down before crabgrass sprouts, not after.

When should I stop mowing in Thibodaux 4 SE?

Keep mowing as long as the grass grows — in Thibodaux 4 SE that's typically until Nov 30 – Dec 21, around the average first fall frost (Dec 14). Warm-season lawns then go brown-dormant for winter, which is normal.

What grass grows best in Thibodaux 4 SE?

Louisiana is warm-season country: Bermuda, Zoysia, St. Augustine, centipede, bahia, buffalo. See the grass guides linked below for identification and care.