Amazon[amazon.com] has Scotts Turf Builder SummerGuard Lawn Food with Insect Control - Lawn Fertilizer and Insect Killer, 5,000 sq. ft., 13.35 lbs. for $19.98. Shipping is free with Prime or on $35+ orders.
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Amazon[amazon.com] has Scotts Turf Builder SummerGuard Lawn Food with Insect Control - Lawn Fertilizer and Insect Killer, 5,000 sq. ft., 13.35 lbs. for $19.98. Shipping is free with Prime or on $35+ orders.
For some reason, Scotts makes it very difficult to find the NPK ratio of their fertilizers, without physically looking at the bag, but this is a 20-0-8, with Biferin added for insect control. You have to go to the Product Details page, and pull up the enlarged image of the package to find the NPK. I could not find it listed anywhere else in the product information on Amazon. This is a good NPK for warm season grasses, and adding the Biferin is a good idea. It's only about a quarter percent by volume, and whether that's enough to matter, I don't know, but it can't hurt, and this is a good price.
Edit — just went to purchase and it's unavailable to me. Oh well.
Last edited by Frankie251 August 28, 2026 at 05:50 AM.
For some reason, Scotts makes it very difficult to find the NPK ratio of their fertilizers, without physically looking at the bag, but this is a 20-0-8, with Biferin added for insect control. You have to go to the Product Details page, and pull up the enlarged image of the package to find the NPK. I could not find it listed anywhere else in the product information on Amazon. This is a good NPK for warm season grasses, and adding the Biferin is a good idea. It's only about a quarter percent by volume, and whether that's enough to matter, I don't know, but it can't hurt, and this is a good price.
Edit — just went to purchase and it's unavailable to me. Oh well.
Mixed reviews for st. Augustine grass... thoughts?
It should be fine for St Augustine. 20 percent nitrogen is not super high compared to a lot of lawn fertilizers, so not as dramatic a green up, but it would still feed St Augustine just fine. It has no Phosphorus, but you may not need it, if you've used a fertilizer containing phosphorus recently. Phosphorus stays in the soil the longest. Nitrogen washes out almost immediately with a good rain, and Potassium a little slower, but not like phosphorus.
It should be fine for St Augustine. 20 percent nitrogen is not super high compared to a lot of lawn fertilizers, so not as dramatic a green up, but it would still feed St Augustine just fine. It has no Phosphorus, but you may not need it, if you've used a fertilizer containing phosphorus recently. Phosphorus stays in the soil the longest. Nitrogen washes out almost immediately with a good rain, and Potassium a little slower, but not like phosphorus.
Ty. No delivery to my Florida zip
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Edit — just went to purchase and it's unavailable to me. Oh well.
Edit — just went to purchase and it's unavailable to me. Oh well.
Amazon has been price matching Lowes on some Scotts products today
Amazon has been price matching Lowes on some Scotts products today
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