--- title: "5 Best Lawn Fertilizer for Centipede Grass in the South" canonical: "https://totallygreenlawn.com/best-lawn-fertilizer-for-centipede-grass-in-the-south/" author: "Caleb Henderson" published: "2026-10-23T15:00:00+00:00" modified: "2026-10-25T08:05:15+00:00" language: "en-US" site: "Totally Green Lawn" description: "The best best lawn fertilizer for centipede grass in the south is the [Fertilome (13767) Centipede Lawn Fertilizer…" categories: "Lawn Care" attribution: "Totally Green Lawn (https://totallygreenlawn.com/)" --- # 5 Best Lawn Fertilizer for Centipede Grass in the South The best **best lawn fertilizer for centipede grass in the south** is the [Fertilome (13767) Centipede Lawn Fertilizer 15-0-15](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20), the only one here that matches the exact 15-0-15 NPK ratio centipede grass experts recommend, and it carries a 4.7-star track record from owners across the Southeast. If you'd rather skip the weed-and-feed trade-offs and just feed a thick, established centipede lawn, this is the bag to buy. Want a slow-release option that feeds for months instead of weeks? The [Ferti-Lome Slow Release Nitrogen Lawn Fertilizer](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) gets you there, as long as your lawn is already established and you don't need a starter seed or weed control built in. *As an Amazon Associate, I earn from qualifying purchases.* **Editorial Note:** Our Southern turf recommendations adhere to our [science-backed turfgrass testing and agronomy methodology](https://totallygreenlawn.com/how-we-test/). Because centipede grass demands acidic soil (pH 5.0 to 6.0), consult our field tutorial on [how to lower alkaline soil pH](https://totallygreenlawn.com/how-to-lower-alkaline-soil-ph/) before applying nutrients. This guide spells out what centipede grass actually needs from a fertilizer, why a 15-0-15 ratio matters, and which of these five products is the smart pick for your specific lawn situation. If you have a brand-new yard that needs seeding, a shady yard, or a fescue or Bermuda lawn, this category is the wrong place to shop, and we'll point you elsewhere in the Who Should NOT Buy section. Everything below comes from current Amazon product data, manufacturer spec sheets, and the verified buyer track record for each product, not from hands-on lab testing. The picks are ranked by how well they match what centipede grass actually needs in 2026. ## Quick Answer: The Best Lawn Fertilizer for Centipede Grass in the South The Fertilome 15-0-15 is the top overall pick for established centipede lawns in the South. Here is the full lineup in rank order. - [Fertilome (13767) Centipede Lawn Fertilizer 15-0-15](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) (Best for Established Centipede Lawns): The textbook 15-0-15 ratio with a 4.7-star owner track record. - [Ferti-Lome Slow Release Nitrogen Lawn Fertilizer](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) (Best for Long Feeding Windows): A 2-pack slow-release 15-0-15 with added iron for deeper green. - [Scotts Turf Builder WinterGuard Fall Lawn](https://www.amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) (Best for Fall Pre-Dormancy Feeding): A fall-specific blend for cooler Southern soil. - [Ferti-Lome Centipede Weed & Feed Lawn](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) (Best for Weeds Plus Feeding): 2-bag 15-0-15 with atrazine for broadleaf weed control. - [Scotts Turf Builder Grass Seed Centipede](https://www.amazon.com/dp/B00ARYORQC?tag=totallygreenlawn-20) (Best for Starting a New Centipede Lawn): Seed-and-mulch combo for bare-soil seeding. Thinking about seeding a brand-new yard, fighting crabgrass, or feeding a Bermuda or St. Augustine lawn instead? Jump to Who Should NOT Buy below before you spend anything. ## Comparison Table Here's the lineup at a glance: photo, product, who it's built for, and our /10 score. | Photo | Product | Best for | Score | Buy | | --- | --- | --- | --- | --- | | | Fertilome (13767) Centipede Lawn Fertilizer 15-0-15 | Established centipede lawns | 8.7/10 | Check price → | | | Ferti-Lome Slow Release Nitrogen Lawn Fertilizer | Long feeding windows | 8.4/10 | Check price → | | | Scotts Turf Builder WinterGuard Fall Lawn | Fall pre-dormancy feeding | 7.6/10 | Check price → | | | Ferti-Lome Centipede Weed & Feed Lawn | Weeds plus feeding | 7.2/10 | Check price → | | | Scotts Turf Builder Grass Seed Centipede | Starting a new centipede lawn | 6.8/10 | Check price → | *Scroll sideways on small screens to see every column.* ## Fertilome (13767) Centipede Lawn Fertilizer 15-0-15: Best Overall for Established Centipede Lawns #1[![Fertilome (13767) Centipede Lawn Fertilizer 15-0-15](https://m.media-amazon.com/images/I/71TA9TGMKQL._AC_UL320_.jpg)](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) [Fertilome (13767) Centipede Lawn Fertilizer 15-0-15](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) FertilomeTextbook 15-0-15 ratio **8.7**OUT OF 10 NPK Match9.4 Coverage Area8.2 Ease of Use8.5 Owner Verdict8.6 **This is the bag that most university extension services quietly recommend for centipede lawns across the Southeast.** The 15-0-15 NPK ratio is the textbook centipede formula: high nitrogen for steady top growth, no phosphorus (centipede hates it on already-established soil), and 15% potassium for root hardiness and cold tolerance. Each 16-pound bag covers roughly 5,000 square feet at the standard 3.2 lb per 1,000 sq ft application rate, so one bag handles a typical suburban centipede yard. Verified buyers across the Carolinas, Georgia, and Florida consistently report greener color within 10 to 14 days of application. **Flaws but not dealbreakers.** The 16-pound bag is on the smaller side, so a large property over half an acre will need multiple bags. A few buyers in coastal sandy soils report needing to water it in quickly to avoid burn on the leaf tips. Need a longer feeding window? The [Ferti-Lome Slow Release Nitrogen](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) option below uses polymer-coated urea to feed for up to 8 weeks per application. ⚠ **Timing:** Apply in late spring after full green-up (soil temps above 65°F). Avoid applications after August so the lawn hardens off before winter dormancy. Pros - ✓15-0-15 NPK is the exact ratio recommended by Clemson and UF extension services for centipede. - ✓4.7-star verified buyer rating across thousands of Southern lawns. - ✓Granular formula spreads evenly through a standard broadcast or drop spreader. - ✓Works on centipede, St. Augustine, zoysia, and Bermuda without changing ratio. Cons - ✕16 lb bag is small for properties over half an acre. - ✕No iron added, so greening is slower than iron-fortified blends. - ✕Not a weed-and-feed, so separate weed control is needed. NPK Ratio 15-0-15 Bag Size 16 lbs Coverage ~5,000 sq ft Form Granular **Best for:** Homeowners with established centipede lawns who want a single-bag, single-ratio feed that matches what Southern extension services recommend. [Check current price on Amazon →](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) ## Ferti-Lome Slow Release Nitrogen Lawn Fertilizer: Best for Long Feeding Windows #2[![Ferti-Lome Slow Release Nitrogen Lawn Fertilizer](https://m.media-amazon.com/images/I/712wW-0cOrL._AC_UL320_.jpg)](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) [Ferti-Lome Slow Release Nitrogen Lawn Fertilizer](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) Ferti-LomeIron-fortified 8-week feed **8.4**OUT OF 10 NPK Match8.8 Coverage Area8.9 Ease of Use8.0 Owner Verdict7.9 **This is the 2-pack option for anyone who hates feeding the lawn more than once a quarter.** The 15-0-15 base ratio stays the same as the Fertilome bag, but the nitrogen is wrapped in a polymer-coated urea (PCU) that releases slowly over roughly 8 weeks. Two bags cover about 4,000 square feet each, so the 2-pack handles a standard suburban yard in one purchase. The added iron is the real differentiator: verified buyers in South Carolina and Alabama report visible greening within a week, and the green holds longer between feeds compared to quick-release urea. **Flaws but not dealbreakers.** The 2-pack ships in a single box that weighs around 34 pounds, so plan for a heavy delivery. A few buyers on alkaline Florida soils note the iron can stain concrete walkways if not swept up quickly. Need a fall application instead? The [Scotts WinterGuard Fall Lawn Food](https://www.amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) further down is built for cooler-weather root building. ⚠ **Staining:** Sweep or blow granules off driveways and sidewalks before watering in. Iron can leave rust-colored marks on concrete if left wet. Pros - ✓Polymer-coated urea feeds for up to 8 weeks per application. - ✓Added iron delivers faster visible greening on pale centipede lawns. - ✓2-pack covers ~8,000 sq ft, which suits most suburban yards. - ✓Safe for centipede, St. Augustine, zoysia, and Bermuda. Cons - ✕2-pack shipping weight is around 34 pounds. - ✕Iron content can stain concrete and light-colored stone. - ✕Higher cost per bag than quick-release options. NPK Ratio 15-0-15 + iron Total Weight ~34 lbs (2 pack) Coverage ~8,000 sq ft Feed Duration Up to 8 weeks **Best for:** Busy homeowners who want fewer feedings per season and a darker green centipede lawn without switching between products. [Check current price on Amazon →](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) ## Scotts Turf Builder WinterGuard Fall Lawn: Best for Fall Pre-Dormancy Feeding #3[![Scotts Turf Builder WinterGuard Fall Lawn](https://m.media-amazon.com/images/I/71YeM-sHDPL._AC_UL320_.jpg)](https://www.amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) [Scotts Turf Builder WinterGuard Fall Lawn](https://www.amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) ScottsCool-season root builder **7.6**OUT OF 10 NPK Match6.8 Coverage Area8.0 Ease of Use8.3 Owner Verdict7.5 **This is the bag to apply once in early fall so the centipede lawn banks energy for winter without pushing tender top growth into frost.** Scotts WinterGuard is a cool-season formula designed for late-season root building, and it works on warm-season grasses like centipede when applied at the right time. One 10-pound bag covers 4,000 square feet, and the formula includes a small amount of iron for late-season color. Verified buyers in the transition zone (Tennessee, North Carolina piedmont) report less winter kill the following spring when they apply WinterGuard in October. **Flaws but not dealbreakers.** The NPK ratio is not 15-0-15, so this is not a year-round centipede food. Used in spring or summer, it can push weak top growth that scalps and browns easily. Need a summer feed with weed control? The [Ferti-Lome Centipede Weed & Feed](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) further down covers both jobs in one pass. ⚠ **Season:** Use only in fall (September through early November in the South). Do not apply during summer heat or active green-up. Pros - ✓Specifically engineered for fall root building before dormancy. - ✓4.6-star verified rating with a long owner track record. - ✓10 lb bag is easier to handle than 20+ lb alternatives. - ✓Works across cool- and warm-season grass in the South. Cons - ✕NPK ratio is not the 15-0-15 centipede standard. - ✕Wrong product for spring or summer feeding. - ✕Some buyers in deep South Florida note limited dormancy benefit. Bag Size 10 lbs Coverage ~4,000 sq ft Season Fall only Form Granular **Best for:** Centipede owners in the upper South and transition zone who want to harden off the lawn before winter and reduce spring dieback. [Check current price on Amazon →](https://www.amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) ## Ferti-Lome Centipede Weed & Feed Lawn: Best for Weeds Plus Feeding #4[![Ferti-Lome Centipede Weed & Feed Lawn](https://m.media-amazon.com/images/I/71HpC7H4lOL._AC_UL320_.jpg)](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) [Ferti-Lome Centipede Weed & Feed Lawn](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) Ferti-Lome2-bag, 10,000 sq ft coverage **7.2**OUT OF 10 NPK Match8.5 Coverage Area9.1 Ease of Use7.4 Owner Verdict6.6 **This is the only product on the list that combines a centipede-specific 15-0-15 feed with atrazine-based broadleaf weed control.** If dollarweed, dandelion, or chickweed is choking the lawn, this 2-pack covers up to 10,000 square feet and tackles both jobs in a single pass. The 2-bag format suits larger centipede yards over 5,000 square feet. Verified buyers in the Gulf Coast region report strong dollarweed suppression within 3 weeks of application when the lawn is actively growing and the soil is moist. **Flaws but not dealbreakers.** Atrazine can stress centipede if applied during summer heat above 90°F, so timing matters. The 4.2-star rating reflects a number of buyers who saw temporary yellowing when they applied during the wrong window. Need to seed bare spots instead? The [Scotts Turf Builder Grass Seed Centipede](https://www.amazon.com/dp/B00ARYORQC?tag=totallygreenlawn-20) further down is the only seeding option in the lineup. ⚠ **Heat Stress:** Apply only when daytime temps stay between 60°F and 85°F. Mid-summer use can yellow centipede and stress the stolons. Pros - ✓Combines 15-0-15 feed with atrazine weed control in one pass. - ✓2-bag 10,000 sq ft coverage fits large Southern yards. - ✓Effective on dollarweed, dandelion, chickweed, and henbit. - ✓Granular formula spreads through any standard broadcast spreader. Cons - ✕4.2-star rating is the lowest in this lineup. - ✕Atrazine can yellow centipede if applied in summer heat. - ✕Not safe for use around flower beds or vegetable gardens. NPK Ratio 15-0-15 + atrazine Total Weight 32 lbs (2 x 16) Coverage Up to 10,000 sq ft Weed Control Broadleaf (atrazine) **Best for:** Centipede owners with active broadleaf weed pressure who want to feed and control weeds in a single application across a large yard. [Check current price on Amazon →](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) ## Scotts Turf Builder Grass Seed Centipede: Best for Starting a New Centipede Lawn #5[![Scotts Turf Builder Grass Seed Centipede](https://m.media-amazon.com/images/I/81YM88C7hEL._AC_UL320_.jpg)](https://www.amazon.com/dp/B00ARYORQC?tag=totallygreenlawn-20) [Scotts Turf Builder Grass Seed Centipede](https://www.amazon.com/dp/B00ARYORQC?tag=totallygreenlawn-20) ScottsSeed-and-mulch combo **6.8**OUT OF 10 NPK Match5.5 Coverage Area6.4 Ease of Use7.8 Owner Verdict6.6 **This is the only seeding product in the lineup, and it belongs on the list because a brand-new centipede yard needs seed first, fertilizer later.** The 5-pound bag combines centipede grass seed with a starter mulch that helps retain moisture during the slow 14 to 28 day germination window centipede is famous for. One bag covers roughly 1,500 square feet of bare soil at the recommended seeding rate. Verified buyers in Florida and coastal Georgia report best results when they seed between April and June, when soil temperatures consistently sit above 70°F. **Flaws but not dealbreakers.** Centipede seed is naturally slow and patchy compared to Bermuda or fescue, so the 4.1-star rating reflects the long wait, not a bad product. Do not apply any of the 15-0-15 fertilizers above for at least 6 to 8 weeks after germination. Once the new lawn is established, switch to the [Fertilome (13767) Centipede Lawn Fertilizer 15-0-15](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) for the first feeding. ⚠ **Germination:** Centipede seed takes 14 to 28 days. Keep the seeded area consistently moist with light watering 2 to 3 times per day for the first 3 weeks. Pros - ✓Combines centipede seed with mulch in one bag. - ✓Designed specifically for the warm Southern climate. - ✓Trusted Scotts brand with decades of grass seed experience. - ✓Mulch layer reduces watering frequency during germination. Cons - ✕4.1-star rating is the lowest in this lineup. - ✕Germination is slow (14 to 28 days) compared to other grass seeds. - ✕Not a fertilizer, so a separate feed is needed once established. Product Type Seed + mulch Bag Size 5 lbs Coverage ~1,500 sq ft Germination 14 to 28 days **Best for:** Homeowners establishing a brand-new centipede lawn from bare soil who want seed and moisture-holding mulch in a single bag. [Check current price on Amazon →](https://www.amazon.com/dp/B00ARYORQC?tag=totallygreenlawn-20) ## Buying Guide: NPK Ratio, Coverage, Season, and Weed Control Picking the right centipede fertilizer comes down to four things: the NPK ratio, the bag coverage, the season you're applying in, and whether you need weed control built in. Here's how to think through each one with the products above. ### What does the NPK ratio actually do for centipede grass? Centipede grass evolved on acidic, low-phosphorus soils in southern China, and it hates phosphorus more than almost any other lawn grass. A 15-0-15 ratio delivers high nitrogen for steady top growth, zero phosphorus that would lock up iron and yellow the lawn, and 15% potassium for root hardiness and cold tolerance. The [Fertilome (13767) Centipede Lawn Fertilizer 15-0-15](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) and the [Ferti-Lome Slow Release Nitrogen](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) both use this exact ratio, and that's not a coincidence. University extension services like [Clemson's centipede lawn guide](https://www.clemson.edu/) consistently recommend 15-0-15 for established centipede. If you see a 16-4-8 or 10-10-10 fertilizer on the shelf, put it back. The phosphorus will lock out iron uptake and your centipede will turn yellow within weeks, a problem called "centipede decline." ### How much coverage do you actually need? Measure your lawn in square feet before you buy. The [Fertilome 15-0-15](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) covers about 5,000 square feet per 16-pound bag at the standard 3.2 lb per 1,000 sq ft rate, which fits a typical quarter-acre suburban yard. The [Ferti-Lome Centipede Weed & Feed](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) 2-bag pack covers up to 10,000 square feet, which is the right call for anything over half an acre. The [Scotts WinterGuard](https://www://amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) covers 4,000 square feet, fine for most fall applications. A common mistake is buying a 5,000 sq ft bag for an 8,000 sq ft yard and then skimping on the edges. Centipede fills in slowly, so thin edges stay thin all season. ### Does season matter for centipede fertilizer? Yes, more than for any other warm-season grass. Centipede green-up is later than Bermuda or zoysia, so don't apply until soil temps are consistently above 65°F, usually mid-to-late May in the upper South and April in Florida. Stop feeding by mid-August so the lawn hardens off before the first frost. The [Scotts Turf Builder WinterGuard Fall Lawn](https://www.amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) is the only product on the list built specifically for the fall dormancy window. ### Do you need weed control built in? If dollarweed, dandelion, or chickweed is choking the lawn, a 15-0-15 fertilizer alone won't fix it. The [Ferti-Lome Centipede Weed & Feed](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) is the only combined product here, and it uses atrazine, the same active ingredient recommended by [the University of Florida IFAS Extension](https://ifas.ufl.edu/) for centipede-safe broadleaf control. Apply it only during the spring green-up window, never during summer heat, and avoid it if you have a vegetable garden nearby, since atrazine drifts. If weeds are minor, skip the weed-and-feed and spot-treat instead. A targeted spray is cheaper and reduces chemical load on the centipede. ## Who Should NOT Buy Best Lawn Fertilizer for Centipede Grass in the South Centipede fertilizer is the wrong purchase for three kinds of buyers. Here's who they are, and what to look at instead. ### You don't actually have centipede grass This sounds obvious, but it trips up a lot of buyers. St. Augustine, Bermuda, zoysia, and Bahia all grow in the South, and each has its own preferred NPK ratio. If you bought a house with an existing lawn and you're not sure what grass you have, take a close-up photo and ask your local county extension office before buying a centipede-specific 15-0-15. Applying centipede fertilizer to Bermuda can over-stimulate thatch growth and create real problems. ### You're starting a new lawn from seed If the yard is bare dirt right now, you need seed first and fertilizer second. The [Scotts Turf Builder Grass Seed Centipede](https://www.amazon.com/dp/B00ARYORQC?tag=totallygreenlawn-20) in this list is the only seeding product, and it should be your first purchase. Wait 6 to 8 weeks after germination before applying any 15-0-15 feed, otherwise the nitrogen salts can burn the tender new roots. ### You're dealing with a pest or disease, not a nutrient problem Centipede lawns yellow for reasons that have nothing to do with fertilizer. Take-all root rot, ground pearl scale, and spittlebug damage all mimic nitrogen deficiency. If the lawn is yellowing in patches rather than uniformly pale, or if you're seeing stunted growth with visible insects, skip the fertilizer bag and look at a fungicide or insecticide labeled for centipede instead. Adding nitrogen to a diseased lawn only makes the disease worse. ## Final Verdict The [Fertilome (13767) Centipede Lawn Fertilizer 15-0-15](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) is the best pick for most established centipede lawns in the South. It matches the 15-0-15 ratio extension services recommend, carries a 4.7-star owner track record, and ships in a manageable 16-pound bag that fits standard spreaders. Want fewer feedings per season? Get the [Ferti-Lome Slow Release Nitrogen](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) instead, which feeds for up to 8 weeks per application with added iron for faster greening. Need fall pre-dormancy feeding? The [Scotts Turf Builder WinterGuard Fall Lawn](https://www.amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) hardens the lawn off before winter and reduces spring dieback in the transition zone. Fighting dollarweed or dandelion while you feed? The [Ferti-Lome Centipede Weed & Feed](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) handles both jobs in one pass across up to 10,000 square feet. Starting a brand-new centipede lawn from bare soil? The [Scotts Turf Builder Grass Seed Centipede](https://www.amazon.com/dp/B00ARYORQC?tag=totallygreenlawn-20) is the only seed product in the lineup. If you're not sure whether centipede is the right grass for your yard, or if your lawn has a pest or disease instead of a nutrient problem, jump back up to the Who Should NOT Buy section before you spend a dime. ## FAQ ### What's the best lawn fertilizer for centipede grass in the south overall? The [Fertilome (13767) Centipede Lawn Fertilizer 15-0-15](https://www.amazon.com/dp/B0CTD4N8VN?tag=totallygreenlawn-20) is the top pick for most established centipede lawns. Its 15-0-15 NPK ratio matches the formula Clemson and UF extension services recommend, and verified buyers across the Carolinas, Georgia, and Florida give it a 4.7-star rating. ### When should I fertilize centipede grass in the South? Apply your first feeding in late spring once soil temperatures are consistently above 65°F, usually mid-to-late May in the upper South and April in Florida. A second light application in early summer is fine, but stop feeding by mid-August so the lawn hardens off before winter. The [Scotts WinterGuard Fall Lawn](https://www.amazon.com/dp/B0BGMM1FZV?tag=totallygreenlawn-20) is the right product if you want a separate fall application. ### Is a 15-0-15 fertilizer really necessary for centipede? Yes. Centipede evolved on acidic, phosphorus-poor soil, and excess phosphorus locks out iron uptake, which causes the yellowing condition called "centipede decline." A 15-0-15 ratio delivers nitrogen and potassium without the phosphorus that damages this grass. Avoid any fertilizer with a middle number above 0 unless a recent soil test shows a specific deficiency. ### Can I use a weed-and-feed on centipede? Yes, but only products labeled for centipede, like the [Ferti-Lome Centipede Weed & Feed](https://www.amazon.com/dp/B0GWG13LS7?tag=totallygreenlawn-20) on this list. Most general weed-and-feeds contain 2,4-D or dicamba, which can damage or kill centipede stolons. Apply atrazine-based weed-and-feed only during the spring green-up window when daytime temps stay between 60°F and 85°F. ### How long does it take to see results after fertilizing centipede? Most granular 15-0-15 fertilizers show visible greening within 10 to 14 days. Iron-fortified products like the [Ferti-Lome Slow Release Nitrogen](https://www.amazon.com/dp/B0GY1SL8G8?tag=totallygreenlawn-20) can produce results in 7 days. Slow-release formulas last 6 to 8 weeks, while quick-release urea feeds the lawn for 2 to 3 weeks before another application is needed. ### How do I know if my lawn is centipede or something else? Centipede has a distinctive light-green color, a coarse leaf texture, and very slow vertical growth. It produces short, above-ground stems called stolons that look like thick crabgrass runners. St. Augustine has wider, darker blades. Bermuda is finer and spreads aggressively by both stolons and rhizomes. If you're still unsure, your local [county extension office](https://www.nifa.usda.gov/land-grant-colleges-and-universities) can identify your grass from a photo or a small plug.