DIY Lawn and Palm Products Compared — Big Box vs. Specialty Brands for North Florida
Half the “why is my lawn dying” calls I get in St. Johns and Flagler County come from homeowners who used the right effort with the wrong product. Scotts Turf Builder is a great fertilizer — in Ohio. On our sandy North Florida soil, it leaches straight through in a single afternoon rain. Here’s the head-to-head on the actual best DIY lawn and palm products for our climate.
Palm Fertilizers — Sunniland vs. Espoma vs. Milorganite
Sunniland Palm Special (8-2-12 with micronutrients)
The correct nutrient ratio for Florida palms — high potassium, moderate nitrogen, and a full micronutrient package (manganese, magnesium, boron, iron). Available at Home Depot. Sunniland is a Florida-based company that formulates for Florida soils.
Espoma Palm-tone
Organic palm fertilizer with mycorrhizae (beneficial soil fungi). Different NPK ratio (4-1-5) but includes slow-release organic nitrogen and calcium. Amazon and some garden centers.
Milorganite
Slow-release organic nitrogen fertilizer (6-4-0). Home Depot. Popular because it’s forgiving (hard to burn) and adds soil organic matter.
Lawn Fertilizers — Scotts vs. Lesco vs. Milorganite
Scotts Turf Builder (Southern Formula)
Northern Scotts (32-0-4 or similar high-N blends) is the wrong product for North Florida. Scotts Southern-labeled formulas are closer to correct — check the bag for a formulation designed for St. Augustine grass specifically. Home Depot.
Lesco Professional
Pro-grade lawn fertilizer sold at Home Depot (Lesco was acquired by Home Depot). Available in several formulations including slow-release nitrogen and pre-emergent blends. Home Depot.
Milorganite (again)
For lawns, Milorganite is a very good slow-release organic option. Iron content gives it a “green up” effect without pushing top growth too fast.
Chinch Bug Treatments — BioAdvanced vs. Ortho vs. Bifen I/T
BioAdvanced Complete Insect Killer for Lawns
Active ingredient: imidacloprid + beta-cyfluthrin. Home Depot. Effective against chinch bugs, sod webworms, mole crickets, and grubs. Granular application, water in per label.
Ortho Bug B Gon Insect Killer for Lawns
Active ingredient: bifenthrin. Lowes and Home Depot. Similar effectiveness to BioAdvanced against chinch bugs. Slightly shorter residual.
Bulk Bifen I/T Concentrate
Pro-grade bifenthrin concentrate sold on Amazon and specialty pest sites. Requires mixing with water and a hose-end sprayer. Cheaper per treatment than granular but requires more application skill.
Fungicides — DiseaseEx vs. BioAdvanced vs. Heritage G
Scotts DiseaseEx Lawn Fungicide
Active ingredient: azoxystrobin. Home Depot. Effective against brown patch, gray leaf spot, and take-all root rot. Granular, water in per label.
BioAdvanced Fungus Control for Lawns
Active ingredient: propiconazole. Alternative fungicide with different mode of action — worth rotating with DiseaseEx if you have chronic fungal issues.
Heritage G
Pro-grade azoxystrobin granular. Same active as DiseaseEx but higher concentration and larger bags. Sold on specialty pest sites.
What the Home Depot Employee Won’t Tell You
The staff at big-box garden centers is usually not trained on regional formulation. They’ll help you find what you asked for but won’t tell you that:
- Standard Scotts Turf Builder is formulated for northern climates and wastes money on sandy soil
- Palm fertilizer needs micronutrients — a “palm fertilizer” without manganese isn’t a real palm fertilizer
- Chinch bug preventive applied in May is 10× more effective than curative applied in July
- Brown patch fungicide has to be applied BEFORE the disease appears to prevent — after it appears you’re limiting damage, not stopping it
When Specialty Products Are Worth the Cost
For most homeowners, the products above cover 90% of what you need for a healthy North Florida landscape. Specialty products (pro-grade concentrates, imported palm nutrients, custom soil test-based blends) are worth the cost when:
- You have 2+ acres and consumer bag sizes get expensive
- You have unusual palm species (coconut palms with specific potassium sensitivity, exotic varietals)
- You’ve done a soil test and know specific deficiencies not addressed by 8-2-12 blends
- You’re managing chronic fungal issues and need chemistry rotation options consumer products don’t offer
Not sure which products your property actually needs? Book a free walkthrough.
Free property assessment across St. Johns and Flagler Counties. Brandon walks the yard, diagnoses what’s happening, and tells you which DIY products would work if the situation is DIY-able.
See Lawn & Palm Care Services →Read next: What Makes Unity’s Annual Lawn & Palm Program Different. Or dig into the full lawn and palm care guide.
Frequently Asked Questions
Can I use Milorganite on palms?
Not as a primary palm fertilizer. Milorganite is nitrogen + iron with no potassium or palm micronutrients. Use Sunniland Palm Special for palms and Milorganite as a lawn supplement.
Does Scotts work at all in Florida?
Scotts Southern-labeled formulas that specify St. Augustine grass are formulated closer to correct. Standard Scotts (the ones sold nationally) is not designed for our soil. Read the bag label carefully.
What’s the biggest lawn product mistake in North Florida?
Applying high-nitrogen fertilizer in summer. It pushes top growth during peak humidity, invites brown patch, and burns the lawn in a heat wave. Fertilize spring and fall, be conservative in summer.
Do I really need to apply fungicide preventively?
For brown patch and take-all root rot in North Florida, yes. Curative fungicide application after the disease is visible only stops it from spreading further — it doesn’t reverse the damage. Preventive application in fall (before humid weather) is much more effective.
Brandon Micalizzi is the licensed owner-operator of Unity Pest & Wildlife, based in St. Augustine, FL. He’s been serving St. Johns and Flagler Counties since 2023 as an owner-operator, with nearly a decade in the industry (since 2017). If you need help with lawn or palm issues you can’t diagnose, book a free assessment or call (386) 597-3955.
