Lawn Care Schedule for Hattiesburg, Mississippi
Zone 8a has mild winters with lows between 10°F and 15°F and a long growing season with light, infrequent frost. Pre-emergent herbicide goes down in mid-February, and the primary lawn care management challenge shifts from cold protection to summer heat and drought stress.
Mississippi's heavy spring rainfall can delay pre-emergent application timing — the treatment should go down when soil temperatures reach 50–55°F regardless of wet conditions, not based on calendar alone.
Zone 8a Timing Guide
- Pre-emergent window:
- mid to late February
- Active growing season:
- late February – December
Local Pests & Diseases
Chinch bugs and fall armyworms both threaten warm-season lawns in Mississippi's hot, humid summers.
Recommended Grass Types for Hattiesburg
Month-by-Month Treatment Calendar
Apply pre-emergent early — soil temps reach 55°F sooner in the South
Second pre-emergent application if using a split approach
Green-up begins — resume mowing as grass exits dormancy
First fertilization after warm-season grass is fully green
Treat emerged broadleaf and grassy weeds before heat arrives
Continue feeding — peak growth season for warm-season grasses
Plug or sprig Bermuda or St. Augustine if filling bare areas
Aerate in late May to relieve compaction during peak growth
Summer feeding; maintain consistent nitrogen for warm-season growth
Apply preventative grub control as beetle eggs are laid
Deep water 2–3 times per week; 0.75–1.25 inches total per week
Peak heat — maintain consistent irrigation to prevent dormancy
Curative treatment if grub damage appears
Watch for brown patch in St. Augustine and Zoysia during humid conditions
Last summer feeding — stop 6–8 weeks before first expected frost
Continue monitoring for large patch in Zoysia and St. Augustine
Final fertilization before dormancy — taper off nitrogen, add potassium
Treat any remaining weeds while grass is still actively growing
Gradually lower mowing height as grass slows ahead of dormancy
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.
Overseeding
Thicken thin turf and fill bare spots during the optimal seeding window.
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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