San Augustine lawn care, month by month
| Month | Tasks |
|---|---|
| January | Dormant (brown is normal) — no nitrogen, light cleanup only |
| February | Apply crabgrass pre-emergent |
| March | Apply crabgrass pre-emergent |
| 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 · Growth stops — final mow |
| November | Growth stops — final mow |
| December | Dormant (brown is normal) — no nitrogen, light cleanup only |
Reading the San Augustine lawn year
San Augustine's lawn year runs on warmth: the lawn wakes after the last frost around Mar 18, hits full stride in midsummer, and goes dormant with the first frost around Nov 13. 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 San Augustine
Frequently asked questions
When should I plant warm-season grass in San Augustine?
Seed, sod, or plug Bermuda, Zoysia, and other warm-season grasses in late spring — around Apr 1 – Apr 15 in San Augustine, 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 San Augustine?
Aim for Feb 25 – Mar 18 — the estimated stretch when San Augustine soil approaches the ~55°F germination threshold, anchored to the average last frost (Mar 18). 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 San Augustine?
Keep mowing as long as the grass grows — in San Augustine that's typically until Oct 30 – Nov 20, around the average first fall frost (Nov 13). Warm-season lawns then go brown-dormant for winter, which is normal.
What grass grows best in San Augustine?
Texas is warm-season country: Bermuda, Zoysia, St. Augustine, centipede, bahia, buffalo. See the grass guides linked below for identification and care.