10 Best Fall Lawn Fertilizers 2026 in the United States

The Scotts Turf Builder Bonus S Southern Weed & Feed2 is designed specifically for Southern lawns, making it an ideal choice for those with St. Augustinegrass, Centipedegrass, Zoysiagrass, and Carpetgrass. This product stands out by not only fertilizing your lawn but also controlling a variety of common weeds like dollarweed, clover, and dandelion. It covers a substantial area of up to 8,000 square feet, which is great for larger lawns, and needs to be watered in immediately after application to be effective.

The 27.59 lbs bag is easy to handle and apply with granular form, ensuring even distribution. By feeding your grass and targeting weeds, it helps build stronger roots to withstand regional stressors typical in southern climates. However, it's critical to note that this product is not suitable for Bermudagrass and may damage it if used incorrectly. Another aspect to consider is that it is a synthetic fertilizer, which may not appeal to those preferring organic options.

Safety precautions are necessary during application, especially around pets and children. If you need a product specifically tailored for Southern grass types and are okay with synthetic formulations, this could be a solid choice for your lawn care needs.

The Scotts Turf Builder Plan for Small Northern Lawns is a comprehensive four-part system designed to simplify lawn care throughout the year. This plan includes specific products for each season: Halts Crabgrass Preventer with Lawn Food for spring, Weed & Feed for summer, SummerGuard Lawn Food with Insect Control for mid-summer, and WinterGuard Fall Lawn Food for fall. Each product targets different lawn care needs, ensuring a healthy, green lawn year-round.

It’s suitable for various grass types including Bermudagrass, Kentucky Bluegrass, Perennial Ryegrass, Tall Fescue, Centipedegrass, Zoysiagrass, and Bahiagrass, and covers an area of up to 5,000 sq. ft., making it ideal for small yards in Northern climates. The granule form allows for easy application, though users need to be consistent with the schedule for best results. Its N-P-K ratios are tailored to address seasonal lawn requirements, promoting growth, weed prevention, and insect control.

The plan is synthetic, which ensures quick results but may deter those interested in organic options. The slow-release nature of some components ensures prolonged feeding. Some users might find the 52.4-pound weight of the package to be cumbersome. If you're looking for a straightforward, year-round lawn care solution, this product could be a strong candidate, especially if you prefer synthetic fertilizers and have a small yard.

Jonathan Green Organic Lawn Food (10251) is a solid choice for fall lawn fertilization, particularly for those preferring organic options. It boasts a 10-0-1 N-P-K ratio, which means it offers a moderate amount of nitrogen, no phosphorus, and a small amount of potassium. This ratio is good for promoting healthy grass growth without overloading the soil with unnecessary nutrients.

As an all-organic fertilizer, it is derived from natural ingredients like feather meal, soybean meal, molasses, and wheat middlings, making it environmentally friendly and safe for use around pets and children. The slow-release formula ensures that nutrients are gradually absorbed by the grass, providing long-term nourishment and reducing the risk of lawn burn.

Its granule form makes application straightforward and manageable, especially over its large coverage area of 15,000 sq. ft. This is ideal for medium to large lawns, offering extensive reach with just one application. However, the absence of phosphorus might be a drawback for lawns that are deficient in this nutrient, as it is essential for root development. Additionally, the product's weight is remarkably low (0.01 ounces), which might be confusing, as it seems too light for a product meant to cover such a large area. Potential buyers should verify this aspect. Jonathan Green Organic Lawn Food is well-suited for those seeking an eco-friendly, slow-release fertilizer that promotes robust grass growth over large areas.