Does your Southern lawn look more like a patchy jungle than a green carpet? You are not alone! Keeping a beautiful yard in the sticky heat and humidity of the South is a real challenge. Weeds seem to pop up overnight, stealing the spotlight from your grass. Choosing the right “Weed and Feed” product can feel like a guessing game. Do you pick the one with the strong weed killer, or the one that promises the deepest green color? Many products work great up north but fail miserably when faced with stubborn Southern invaders like dollarweed or crabgrass.
Don’t waste your money on bags of fertilizer that just feed the weeds! This guide cuts through the confusion. We will show you exactly what ingredients to look for to tackle common Southern lawn problems effectively. You will learn how to match the right product to your grass type—whether you have warm-season Bermuda or St. Augustine grass. By the time you finish reading, you will have the knowledge to select a Weed and Feed that delivers a thick, healthy, weed-free lawn all season long. Let’s dive into finding the perfect solution for your green space!
Top Weed And Feed For Southern Lawns Recommendations
- SOUTHERN LAWNS: Specially formulated for Southern lawns like Bermudagrass, St. Augustinegrass (including Floratam), and more, this grass fertilizer for lawn provides care and acts as a weed killer for lawns
- 6-MONTH PROTECTION: Delivers up to 6 months of weed prevention, stopping listed broadleaf and grassy weeds, including crabgrass
- WEED KILLER: Kills listed weeds like dandelion, dollarweed, and clover, serving as a reliable weed and feed for lawns to keep your lawn healthy and maintain its beauty
- LAWN FERTILIZER: This lawn fertilizer and weed control product feeds, greens, and strengthens your lawn, helping it remain lush throughout the season
- EASY APPLICATION: Use with a broadcast or drop spreader to apply this weed and feed lawn fertilizer, managing your lawn care routine with ease and maximum results
- WEED KILLER PLUS LAWN FOOD: Scotts Turf Builder Weed & Feed3 weed killer plus fertilizer for grass kills existing listed weeds and feeds to thicken your lawn and crowd out future weeds
- WEED CONTROL FOR LAWNS: These weed killer plus lawn fertilizer granules control over 50 listed lawn weeds, including clover, dandelion, plantain, morningglory, chicory, eveningprimrose, and purslane
- WEED AND FEED FOR LAWNS: Apply this combination weed control and lawn food to your wet lawn when weeds are actively growing and daytime temperatures are consistently between 60°F and 90°F; don't apply more than 2X per year
- USE ON LISTED GRASS TYPES: Apply this lawn care product to Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass (temporary discoloration may occur on some grasses)
- DO NOT USE ON: Do not use this weed killer for lawns on St. Augustinegrass (including Floratam), Dichondra, Lippia, Carpetgrass, and Bentgrass lawns
- SOUTHERN LAWNS: Specially formulated for Southern lawns like Bermudagrass, St. Augustinegrass (including Floratam), and more, this grass fertilizer provides care and acts as a weed killer for lawns
- 6-MONTH PROTECTION: Delivers up to 6 months of weed prevention, stopping listed broadleaf and grassy weeds, including crabgrass
- WEED KILLER: Kills listed weeds like dandelion, dollarweed, and clover, serving as a reliable weed and feed for lawns to keep your lawn healthy and maintain its beauty
- LAWN FERTILIZER: This lawn fertilizer and weed control product feeds, greens, and strengthens your lawn, helping it remain lush throughout the season
- EASY APPLICATION: Use with a broadcast or drop spreader to apply this weed and feed lawn fertilizer, managing your lawn care routine with ease and maximum results
- WEED KILLER PLUS LAWN FOOD: Scotts Turf Builder Weed & Feed3 weed killer plus fertilizer for grass kills existing listed weeds and feeds to thicken your lawn and crowd out future weeds
- WEED CONTROL FOR LAWNS: These weed killer plus lawn fertilizer granules control over 50 listed lawn weeds, including clover, dandelion, plantain, morningglory, chicory, eveningprimrose, and purslane
- WEED AND FEED FOR LAWNS: Apply this combination weed control and lawn food to your wet lawn when weeds are actively growing and daytime temperatures are consistently between 60°F and 90°F; don't apply more than 2X per year
- USE ON LISTED GRASS TYPES: Apply this lawn care product to Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass (temporary discoloration may occur on some grasses)
- DO NOT USE ON: Do not use this weed killer for lawns on St. Augustinegrass (including Floratam), Dichondra, Lippia, Carpetgrass, and Bentgrass lawns
- Scotts Turf Builder Triple Action1 is a three-in-one formula that kills weeds, prevents crabgrass, and feeds grass to build thick, green lawns
- Controls existing listed lawn weeds, including dandelion, clover, dollarweed, ground ivy, chickweed, plantain, henbit, and english daisy
- Prevents crabgrass for 4 months (will not kill existing crabgrass); prevents other listed grassy weeds from invading your lawn
- For use on Bahiagrass, Centipedegrass, Kentucky Bluegrass, Perennial Ryegrass, Bermudagrass, Tall Fescue, Fine Fescue, and Zosyiagrass
- Apply to a wet lawn with a Scotts spreader, and then water in after 24 hours; apply in early spring when dandelions are actively growing; a 33.94 lb. bag treats 12,000 sq. ft.
- KILLS & PREVENTS WEEDS* UP TO 6 MONTHS: Kills broadleaf weeds*, including Dandelion, Clover, Chickweed and Henbit with a proven blend of weed killers *Listed
- CRABGRASS PREVENTION: Prevents grassy and listed broadleaf weeds such as Crabgrass, Annual Bluegrass, Common Dandelion, Goosegrass and Spurge for up to 6 months
- IDEAL FOR SOUTHERN LAWNS: Improve your lawn care with this broadleaf weed killer that treats up to 4,000 square feet of southern turf, including all varieties of St. Augustinegrass and Floratam
- READY FOR THE SEASON: With one application, this crabgrass preventer offers season-long weed control
- SIMPLE APPLICATION: Apply these weed killer granules with a rotary or drop spreader and water lightly 24 hours after applying
- SOUTHERN LAWNS: Formulated to work on major southern lawn types – Bermudagrass, St Augustinegrass (including Floratam), Centipedegrass and Zoysiagrass
- 6-MONTH PROTECTION: Prevents broadleaf, grassy weeds, and crabgrass for up to 6 months
- WEED KILLER: Kills weeds including Dandelion, Dollarweed, and Clover
- LAWN FERTILIZER: Feeds, greens, and strengthens your lawn
- INSECT KILLER: Kills Fire Ants*, Armyworms, Cutworms, Mole Crickets, Chinch Bugs and more *Kills fire ants upon initial application only
- Scotts Turf Builder Southern Lawn Food is a fertilizer specially formulated for Southern lawns
- The included Scotts All-in-One Particles build strong, deep grass roots to protect against heat and drought
- Apply this grass fertilizer to a wet or dry lawn during the growing season
- This lawn care product is safe to use on Southern grass
- One 28.12 lb. bag of Scotts Turf Builder Southern Lawn Food covers 10,000 sq. ft.
Weed & Feed for Southern Lawns: Your Complete Buying Guide
Keeping a lush, green lawn in the South means battling heat, humidity, and a whole host of stubborn weeds. Weed and feed products are your secret weapon. They put down fertilizer to make your grass grow strong and herbicides to kill the weeds—all in one easy step. Choosing the right one makes all the difference for your Bermuda, Zoysia, or St. Augustine grass.
Key Features to Look For
When shopping for weed and feed, you need to check the label carefully. Different products work best at different times of the year.
1. Active Herbicide Type
- Pre-Emergent: This stops weeds before they sprout. It’s crucial for preventing summer weeds like crabgrass in the spring. Look for ingredients like Pendimethalin.
- Post-Emergent: This kills weeds that are already growing. This is good for dandelions or clover that pop up later. Look for 2,4-D or Dicamba.
2. Fertilizer Ratio (N-P-K)
The three numbers on the bag (like 24-0-12) tell you the percentage of Nitrogen (N), Phosphate (P), and Potash (K). For Southern lawns:
- High Nitrogen (N): This fuels that deep green color and fast growth needed to outcompete weeds.
- Low or Zero Phosphate (P): Many Southern soils already have enough phosphorus, and too much can hurt the environment.
3. Application Timing
Some formulas are made for early spring applications (pre-emergent heavy), while others are designed for summer feeding. Match the product to the season you are treating.
Important Materials and Ingredients
The materials inside the bag determine how well the product works and how safe it is for your specific grass type.
Grass Specificity
This is non-negotiable. Southern grasses like St. Augustine are very sensitive. Always ensure the bag clearly states it is safe for warm-season grasses. Using a product meant for cool-season grass (like Fescue) can severely burn or kill your lawn.
Slow-Release Nitrogen
High-quality products use slow-release nitrogen sources. This means your grass gets a steady meal over several weeks, preventing rapid, weak growth (and burning) that happens with fast-release fertilizers.
Factors That Improve or Reduce Quality
What makes one bag better than another?
Quality Boosters
- Micronutrients: Added iron or sulfur helps deepen the green color and improves stress tolerance against the Southern sun.
- Granule Size: Uniform, medium-sized granules spread more evenly, leading to fewer missed spots or burned patches.
Quality Reducers
- Too Much Fast-Release Nitrogen: This causes quick, weak growth, making the grass an easy target for pests and disease, and it often leads to fertilizer burn if watered incorrectly.
- Incorrect Application Rate: Applying too much, even of a good product, reduces quality by burning the grass. Always calibrate your spreader!
User Experience and Use Cases
How you use the product impacts your final result.
Application Ease
Most weed and feed comes in granular form. Look for bags with clear instructions on spreader settings. For the best user experience, choose a product that mixes well and doesn’t clog your spreader.
When to Use It
- Case 1: Spring Wake-Up. Use a pre-emergent weed and feed when soil temperatures consistently hit 55°F. This stops crabgrass before it starts.
- Case 2: Mid-Summer Boost. Use a nitrogen-heavy formula when the grass is actively growing and needs color, making sure the herbicide component is safe for summer heat.
10 Frequently Asked Questions (FAQ) About Southern Weed & Feed
Q: When is the best time to apply weed and feed in the South?
A: Apply pre-emergent weed and feed in early spring, usually around March or when soil temperatures reach 55 degrees Fahrenheit. Apply post-emergent treatments when weeds are actively growing.
Q: Can I use weed and feed on St. Augustine grass?
A: Only if the label specifically says it is safe for St. Augustine. St. Augustine is very sensitive, and many common herbicides will damage or kill it.
Q: What does the N-P-K ratio mean on the bag?
A: N-P-K stands for Nitrogen (for green color), Phosphate (for root growth), and Potash (for overall health). Southern lawns usually need high N and low P.
Q: Should I water the lawn before or after applying granular weed and feed?
A: Read the label, but generally, you should water lightly *before* application if the soil is very dry. Then, water lightly *after* application to move the granules down to the soil level where they can work.
Q: How soon can I mow my lawn after using weed and feed?
A: Wait at least two days after application before mowing. This gives the herbicide time to absorb into the weed leaves properly.
Q: Will this kill clover and dandelions already in my yard?
A: Only if the product contains a post-emergent herbicide. Pre-emergents only stop seeds from sprouting; they do not kill existing plants.
Q: Can I use weed and feed if I plan to overseed my lawn?
A: No. Most weed and feed products contain herbicides that stop all seed germination, including your new grass seed. Wait until the new grass is established before using weed and feed.
Q: What is the difference between a granular and a liquid weed and feed?
A: Granular products spread dry and are activated by watering. Liquid products mix with water and spray on, offering faster absorption but sometimes less residual weed control.
Q: Is it safe to let my dog or pets on the lawn after application?
A: Wait until the treated area is completely dry, usually a few hours. Once dry, the product is generally safe, but always check the specific safety warnings on the packaging.
Q: How long does the weed-killing effect last?
A: Pre-emergent weed control typically lasts 6 to 12 weeks, depending on the rain and heat. You need to reapply before the protection wears off.