Chisos Basin, TX Lawn Care Calendar

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

Turf region
Warm-season
Bermuda, Zoysia, St. Augustine, centipede, bahia, buffalo
Last spring frost
Mar 10
median, 1991–2020
First fall frost
Nov 19
median, 1991–2020
Growing stretch
254 days
frost to frost
TaskChisos Basin windowWhy then
Crabgrass pre-emergent Feb 17 – Mar 10 Southern soil warms early — don’t be late
Seed / sod / establish Mar 24 – Apr 7 Soil 65–70°F; a full season to mature
First feeding Mar 31 – Apr 21 At full green-up, not before
Aerate / dethatch Apr 7 – May 5 Peak growth heals the disturbance fast
Last nitrogen Sep 24 – Oct 8 6–8 weeks before frost — then stop
Growth stops / final mow Nov 5 – Nov 26 Dormancy arrives with first frost

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

Chisos Basin lawn care, month by month

MonthTasks
January Dormant (brown is normal) — no nitrogen, light cleanup only
February Apply crabgrass pre-emergent
March Apply crabgrass pre-emergent · Seed, sod, or plug new grass · First feeding at full green-up
April Seed, sod, or plug new grass · First feeding at full green-up · Aerate / dethatch
May Aerate / dethatch
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 Last nitrogen of the year
October Last nitrogen of the year
November Growth stops — final mow
December Dormant (brown is normal) — no nitrogen, light cleanup only

Reading the Chisos Basin lawn year

Chisos Basin's lawn year runs on warmth: the lawn wakes after the last frost around Mar 10, hits full stride in midsummer, and goes dormant with the first frost around Nov 19. 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 Chisos Basin

Frequently asked questions

When should I plant warm-season grass in Chisos Basin?

Seed, sod, or plug Bermuda, Zoysia, and other warm-season grasses in late spring — around Mar 24 – Apr 7 in Chisos Basin, 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 Chisos Basin?

Aim for Feb 17 – Mar 10 — the estimated stretch when Chisos Basin soil approaches the ~55°F germination threshold, anchored to the average last frost (Mar 10). 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 Chisos Basin?

Keep mowing as long as the grass grows — in Chisos Basin that's typically until Nov 5 – Nov 26, around the average first fall frost (Nov 19). Warm-season lawns then go brown-dormant for winter, which is normal.

What grass grows best in Chisos Basin?

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