10 Best Fall Lawn Fertilizers 2025 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.

The Pennington 100536576 UltraGreen Lawn Fertilizer is a solid choice for maintaining a healthy, green lawn through fall. One of its key strengths is its ability to cover a large area—up to 5000 sq ft—with a 14-pound bag, making it efficient for larger lawns. The granule form makes it easy to apply with a broadcast or drop spreader, catering to users who prefer simple application methods. The fertilizer is quick-acting, promoting rapid greening and a lush, thick lawn, which is beneficial for those looking to see results swiftly.

Additionally, its extended feeding formula nourishes your lawn for up to three months, reducing the need for frequent reapplication and providing long-term benefits as the growing season winds down. It also strengthens your lawn against heat and drought, a valuable feature for maintaining lawn health during seasonal transitions. The product is made in the USA by Central Garden & Pet, a well-known manufacturer in the lawn care industry, adding credibility to its quality and effectiveness.