San Antonio-Seaworld lawn care, month by month
| Month | Tasks |
|---|---|
| January | Apply crabgrass pre-emergent |
| February | Apply crabgrass pre-emergent |
| March | Seed, sod, or plug new grass · First feeding at full green-up · Aerate / dethatch |
| April | First feeding at full green-up · 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 | Growth stops — final mow |
| December | Growth stops — final mow |
Reading the San Antonio-Seaworld lawn year
San Antonio-Seaworld's lawn year runs on warmth: the lawn wakes after the last frost around Feb 18, hits full stride in midsummer, and goes dormant with the first frost around Dec 9. 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 Antonio-Seaworld
Frequently asked questions
When should I plant warm-season grass in San Antonio-Seaworld?
Seed, sod, or plug Bermuda, Zoysia, and other warm-season grasses in late spring — around Mar 4 – Mar 18 in San Antonio-Seaworld, 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 Antonio-Seaworld?
Aim for Jan 28 – Feb 18 — the estimated stretch when San Antonio-Seaworld soil approaches the ~55°F germination threshold, anchored to the average last frost (Feb 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 Antonio-Seaworld?
Keep mowing as long as the grass grows — in San Antonio-Seaworld that's typically until Nov 25 – Dec 16, around the average first fall frost (Dec 9). Warm-season lawns then go brown-dormant for winter, which is normal.
What grass grows best in San Antonio-Seaworld?
Texas is warm-season country: Bermuda, Zoysia, St. Augustine, centipede, bahia, buffalo. See the grass guides linked below for identification and care.