Choosing the right fertilizer for Floratam, a popular St. Augustine grass variety, helps maintain a lush, resilient lawn in southern climates. The products below are selected for compatibility with Floratam and southern lawns, offering a mix of feeding, weed control, and protection from heat and pests. This guide provides objective, actionable information to compare options and identify the best fit for your yard.
| Product | Brand | Key Benefit |
|---|---|---|
| BioAdvanced 3-in-1 Weed and Feed for Southern Lawns | BioAdvanced | 6-month weed prevention with weed killer for Florida/Southern grasses |
| Scotts Green Max Lawn Food with Iron | Scotts | Rapid deep greening with iron for vibrant lawns |
| Advanced 16-4-8 Balanced NPK Liquid Lawn Food | Simple Lawn Solutions | All-nutrient liquid formula for easy application |
| Scotts Turf Builder Weed & Feed3 | Scotts | Kills listed weeds while feeding for thicker lawns |
| Scotts Turf Builder Starter Fertilizer for New Grass | Scotts | Supports seed, sod, and plugs with strong initial growth |
BioAdvanced 3-in-1 Weed and Feed for Southern Lawns

Brand: BioAdvanced
Overview: This product is specially formulated for Southern lawns, including Floratam. It provides up to 6 months of weed prevention and acts as a fertilizer while killing listed weeds such as dandelion and crabgrass. It is designed to keep Floratam and other southern grasses healthy and aesthetically pleasing.
Key features: Southern lawn compatibility, 6-month weed prevention, Kills listed broadleaf and grassy weeds
Scotts Green Max Lawn Food with Iron Supplement

Brand: Scotts
Overview: Dual-action formula that feeds while delivering deep greening in about 3 days. The inclusion of 5% iron enhances color quickly, suitable for Floratam lawns in warm seasons. Applicable to various grass types in spring, summer, or fall.
Key features: Iron-dependent greening, Fast visual results, Broad applicability across grasses
Advanced 16-4-8 Balanced NPK Liquid Lawn Food

Brand: Simple Lawn Solutions
Overview: A complete liquid NPK blend (16-4-8) enriched with Seaweed & Fish for nutrient-rich feed. Designed for easy application and quick uptake to support greening and growth across any grass type, including Floratam, with simple sprayer-ready use.
Key features: Complete macronutrients, Liquid format for easy use, Seaweed & fish extracts
Scotts Turf Builder Weed & Feed3

Brand: Scotts
Overview: Combines weed control and lawn feeding to thicken lawns and deter future weeds. It targets listed lawn weeds (e.g., dandelion, clover) while providing nutrients to help Floratam and other southern grasses stay robust.
Key features: Weed control, Lawn feeding, Prevents regrowth of common weeds
Scotts Turf Builder Starter Fertilizer for New Grass

Brand: Scotts
Overview: This starter fertilizer is designed to grow new grass up to 70% thicker and 35% quicker versus unfed turf. It’s well-suited for Floratam lawns established from seed, sod, or plugs and uses a 24-25-4 ratio to support early growth stages.
Key features: Early growth boost, Supports seed and sod, High phosphorus availability
Scotts Turf Builder Triple Action

Brand: Scotts
Overview: A three-in-one formula that kills weeds, prevents crabgrass, and feeds grass to build thick, green lawns. It covers common listed lawn weeds and helps Floratam-bound lawns resist future weed pressure.
Key features: Weed control, Crabgrass prevention, Nutrition for growth
Scotts Turf Builder SummerGuard Lawn Food

Brand: Scotts
Overview: This product feeds lawns while providing insect control, offering protection against heat and drought. It also helps Floratam lawns endure summer stresses by strengthening the root system and overall resilience.
Key features: Insect control, Heat and drought resistance, Seasonal lawn nutrition
Buying Guide
When selecting a fertilizer for Floratam grass, consider these factors to optimize growth and weed management:
- Grass type compatibility: Floratam is a St. Augustine variety common in southern climates. Choose products labeled for St. Augustine or southern lawns to ensure nutrient balance and weed control works effectively without harming the grass.
- Weed control versus feeding: Decide if you need a weed-and-feed product or a focused fertilizer. Weed controls should align with local weed patterns like crabgrass, dandelion, dollarweed, and clover common in warm-season lawns.
- Season and climate: In hot climates, summer formulations that resist heat stress help maintain a lush lawn. Spring and fall applications can focus more on growth and color without aggressive weed control.
- NPK balance: Floratam generally benefits from balanced NPK ratios that support root health, dense turf, and leaf color. Avoid high nitrogen-only formulations that promote rapid growth with weaker weed control.
- Application timing: Follow product labels for optimal timing. Many treatments are most effective when weeds are actively growing and temperatures are within recommended ranges.
- Sum and spread: Use appropriate spreaders or sprayers to ensure even coverage. Read label directions for rate per 1,000 sq ft to avoid turf burn or under-feeding.
- Environmental considerations: Choose products with lower runoff potential and label guidance on lawn proximity to water sources to protect surrounding ecosystems.
In practice, for Floratam lawns, a combination approach—seasonal fertilization plus targeted weed control—often yields the best long-term color and density. Always verify compatibility with Floratam and follow local lawn-care guidelines to maintain a healthy, green yard.