10 Best Garden Fertilizers 2025 in the United States

The Scotts Turf Builder Weed & Feed3 is a combination lawn fertilizer and weed killer designed for those who want to maintain a healthy, weed-free lawn. One of its main strengths is its dual functionality; it not only fertilizes the lawn but also controls more than 50 types of common weeds, including dandelions and clover. This makes it particularly suitable for homeowners dealing with persistent weed issues.

The product’s coverage of 5,000 sq. ft. is substantial, meaning it can handle medium to large lawns with ease. It is also compatible with various grass types like Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass, which adds to its versatility. However, it's important to note that this product is not available in Florida, so residents there will need an alternative solution.

The application requires the lawn to be wet and the temperature to be between 60°F and 90°F, which may require some planning. Being a synthetic fertilizer, it might not appeal to those looking for an organic option. Scotts Turf Builder Weed & Feed3 is a reliable and effective choice for users who prioritize convenience and the dual action of weed control and fertilization.

Miracle-Gro Shake 'N Feed All Purpose Plant Food is designed to provide nourishment for both in-ground and container plants for up to 3 months. This product stands out due to its inclusion of vital micronutrients that help promote stronger, more vibrant, and productive plants. It is versatile and can be used for a variety of plants including flowers, vegetables, and herbs, whether they are indoors or outdoors.

One of the main strengths of this fertilizer is its ease of use; simply apply the granules evenly onto the soil, work them into the top layer, and water to activate. This makes it user-friendly for those who may not have a lot of gardening experience. Another benefit is that it contains natural ingredients that support plant health above and below the soil surface.

On the downside, the need to reapply every 3 months means it does require some ongoing maintenance. The product is lightweight and easy to handle, with a comprehensive coverage area, making it suitable for small to medium-sized gardens. It's a solid option for those who want a reliable and easy-to-use fertilizer to enhance their garden's productivity.

Osmocote Smart-Release Plant Food Plus is a versatile fertilizer suitable for both indoor and outdoor plants, including those in containers and in-ground gardens. It contains 11 essential nutrients, ensuring comprehensive nourishment for a wide range of plant types. With an N-P-K ratio of 15-9-12, it provides a balanced mix of nitrogen, phosphorus, and potassium, promoting healthy growth and development.

One of its standout features is its gradual release formula, feeding plants for up to 6 months, which reduces the frequency of reapplication and maintenance effort. This product is easy to use; simply sprinkle the granules and mix them into the soil, then water regularly. An 8 lb. container can cover around 300 sq. ft., making it economical for larger gardens. Although it is a synthetic fertilizer, it is fortified with secondary nutrients beneficial for plant health.

Some users might prefer organic options, which this product is not. It works best when mixed into the top 1-3 inches of soil, which might be a bit of extra work for some. In summary, Osmocote Smart-Release Plant Food Plus is a reliable choice for gardeners looking for a long-lasting, comprehensive fertilizer for a variety of plants.