Lawn Care Schedule for San Antonio, Texas
Zone 8b is nearly frost-free, with winter lows between 15°F and 20°F and a growing season of 10 or more months. Warm-season grasses are fully active, and the focus shifts from frost timing to summer irrigation management, consistent fertilization, and monitoring for chinch bugs and fungal disease.
Texas spans multiple climate zones — Houston follows South belt timing, Dallas follows Transition timing, and west Texas requires drought-adapted management — so local conditions should guide treatment schedules rather than statewide averages.
Zone 8b Timing Guide
- Pre-emergent window:
- early to mid-February
- Active growing season:
- February – December
Local Pests & Diseases
Chinch bugs and fire ants both affect Texas lawns broadly, with chinch bug damage concentrated in St. Augustine lawns during peak summer heat.
Recommended Grass Types for San Antonio
Month-by-Month Treatment Calendar
Apply early — Texas soil often crosses 55°F by early-to-mid February
Green-up begins across most of the state
Second application if using a split approach
First feeding once warm-season grass is fully green
Treat emerged weeds before summer heat
Continue feeding through peak spring growth
Aerate to relieve compaction from clay soils common across the state
Summer feeding continues
Preventative application as beetle eggs are laid
Deep watering as temperatures climb quickly
Last summer feeding — stop 6–8 weeks before the first expected frost
Continue irrigation through late-summer heat
Final feeding before dormancy approaches
Gradually lower mowing height as growth slows
Related Guides
Treatment Guides for the South Belt
Fertilization
Feed your lawn at the right time — not on the bag's schedule.
Pre-Emergent
Stop crabgrass before it starts — timing is everything.
Post-Emergent
Kill the weeds that are already there — selectively and safely.
Aeration
Break up compaction and open the soil to water, air, and nutrients.
Watering
Water deep and infrequent — not shallow and daily.
Mowing
The one-third rule changes everything about how your lawn looks.
Grub Control
Prevent root damage before you see it — curative treatments are less effective.
Fungicide
Prevent disease before it spreads — fungicide rarely rescues an infected lawn.
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