Spring Lawn Care in Georgia: Expert Guide for Warm-Season Grasses

When Should I Apply Pre-Emergent Herbicide in Georgia?

Timing pre-emergent herbicide application is crucial for Georgia lawns, as crabgrass and other annual weeds begin germinating when soil temperatures consistently reach 55-60°F[4]. In Georgia, this typically occurs in late February to early March, though northern mountain regions may delay application until mid-March.

Apply pre-emergent herbicide containing pendimethalin or prodiamine before dogwood trees begin blooming, a reliable natural indicator for Georgia homeowners[1]. The application window is narrow—too early and the herbicide may break down before weeds germinate, too late and crabgrass seeds will have already sprouted.

For established Bermudagrass and Zoysiagrass lawns, choose pre-emergent products that won't inhibit grass growth[5]. Centipedegrass requires extra care with herbicide selection due to its sensitivity to certain chemicals.

What's the Best Fertilization Schedule for Georgia Lawns?

Georgia's warm-season grasses require different fertilization timing than cool-season varieties. Begin fertilizing when grass shows signs of active growth, typically in April when soil temperatures consistently reach 65°F[2].

Bermudagrass Fertilization

Bermudagrass, Georgia's most common turfgrass, needs 3-5 pounds of nitrogen per 1,000 square feet annually[6]. Apply the first application in April, followed by additional applications every 6-8 weeks through September. This aggressive feeding schedule supports Bermudagrass's rapid growth and heat tolerance.

Centipedegrass and St. Augustinegrass Care

Centipedegrass requires minimal fertilization—only 1-2 pounds of nitrogen per 1,000 square feet annually[7]. Over-fertilizing centipedegrass leads to thatch buildup and increased susceptibility to large patch disease. St. Augustinegrass falls between these extremes, requiring 2-4 pounds of nitrogen annually.

Soil Testing Benefits

Georgia's acidic soils often require lime applications to maintain proper pH levels between 6.0-7.0 for optimal nutrient uptake[3]. Conduct soil tests every 2-3 years through UGA Extension offices to determine specific nutrient needs.

How Should I Handle Spring Pest and Disease Issues?

Georgia's high humidity and warm temperatures create ideal conditions for lawn pests and diseases. Spring prevention and early intervention prove more effective than reactive treatments[8].

Common Spring Diseases

Large patch disease affects Zoysiagrass and St. Augustinegrass as they emerge from dormancy, appearing as circular brown patches 2-3 feet in diameter[1]. Improve air circulation by pruning nearby shrubs and avoid late-day watering to reduce humidity around grass blades.

Spring dead spot primarily affects Bermudagrass in northern Georgia, creating circular dead areas that become apparent as grass greens up[4]. These areas require reseeding or sodding once soil temperatures warm sufficiently.

Early Pest Management

Mole crickets become active in Georgia soils as temperatures warm, with peak activity occurring at dusk and dawn[9]. Apply beneficial nematodes in late spring when soil temperatures reach 70°F for biological control.

Fire ants remain active year-round in Georgia but increase mound-building activity in spring[5]. Use broadcast baits in March and April when worker ants are actively foraging, following up with individual mound treatments as needed.

Weed Control Beyond Pre-Emergents

Virginia buttonweed and dollarweed thrive in Georgia's moist conditions, often appearing in spring as temperatures warm[10]. These perennial weeds require post-emergent herbicides containing triclopyr or 2,4-D, applied when weeds are actively growing but before summer stress begins.

When Should I Start Mowing and Spring Maintenance?

Begin mowing Georgia warm-season grasses when they reach 30% above their recommended height—typically 1.5 inches for Bermudagrass and 2.5 inches for Centipedegrass[2]. This usually occurs in March for central and southern Georgia, extending into April for northern regions.

Sharpen mower blades before the first cut to ensure clean cuts that promote healthy growth and reduce disease entry points[6]. Dull blades tear grass, creating brown, frayed tips that weaken the plant.

Spring Cleanup Tasks

Remove excessive thatch buildup through dethatching if the layer exceeds 0.5 inches. Georgia's warm, humid conditions accelerate thatch accumulation, particularly in overfertilized lawns[7].

Core aeration benefits compacted Georgia clay soils, but timing matters for warm-season grasses[8]. Wait until May through July when grasses are actively growing and can quickly recover from aeration stress.

Moving Forward with Your Georgia Lawn

Successful spring lawn care in Georgia requires understanding your specific grass type and local climate conditions. Focus on proper timing for pre-emergent applications, appropriate fertilization schedules, and proactive pest management to establish a foundation for year-round lawn health[9].

Consult UGA Extension resources for county-specific recommendations and consider professional soil testing to optimize your fertilization program[1]. With Georgia's long growing season and favorable conditions for warm-season grasses, proper spring preparation sets the stage for a thriving lawn through summer's heat and humidity.