10 Best fertilizers 2025 in the United States

Miracle-Gro Water Soluble All Purpose Plant Food is a versatile fertilizer suitable for a variety of plants, including flowers, vegetables, trees, shrubs, and houseplants. One of its major strengths is its ability to provide essential nutrients instantly, promoting the growth of larger and more beautiful plants compared to unfed ones.

It is very user-friendly, as it can be applied every 1-2 weeks using either the Miracle-Gro Garden Feeder or any standard watering can. This makes the application process straightforward and convenient for both indoor and outdoor gardening. Additionally, it's safe to use on all plants and comes with a guarantee that it won't burn them when used as directed, which provides peace of mind for users concerned about over-fertilization.

Miracle-Gro Water Soluble All Purpose Plant Food is a highly effective fertilizer that is particularly well-suited for general use in both indoor and outdoor gardens, although it may not meet the needs of those specifically seeking organic products or highly specific nutrient formulations.

Osmocote Smart-Release Plant Food Plus is a versatile fertilizer designed for both indoor and outdoor plants. With an NPK ratio of 15-9-12, it offers a balanced mix of nitrogen, phosphorus, and potassium, essential for plant growth. It also contains 11 essential nutrients, making it suitable for most types of plants and growing conditions, whether in containers or in-ground gardens. The granules are formulated to feed plants for up to six months, which reduces the need for frequent reapplication.

This fertilizer is synthetic, which means it provides consistent and immediate nutrients to plants. It is easy to apply by sprinkling and mixing into the soil, followed by regular watering. The 8 lb. container covers a substantial area of approximately 300 sq. ft., making it both cost-effective and convenient for larger gardens. On the downside, as a synthetic fertilizer, it may not be suitable for those looking for an organic option. Additionally, users need to reapply every six months, which might be less convenient compared to some long-lasting organic fertilizers.

Osmocote Smart-Release Plant Food Plus is a reliable choice for gardeners looking for a long-lasting, nutrient-rich fertilizer suitable for a wide variety of plants.

The Andersons Professional PGF Complete 16-4-8 Fertilizer is a solid choice for those looking to enhance their lawn's health. It has a balanced NPK ratio of 16-4-8, making it suitable for promoting strong grass growth. The inclusion of 7% humic acid is a significant strength, as it can improve soil quality and reduce the need for additional nutrients. This fertilizer is phosphorus-free, which may be beneficial for areas where phosphorus runoff is a concern.

The slow-release nitrogen ensures consistent growth over time, and the fine particle size allows for even distribution and quick absorption when watered, ensuring nutrients reach the soil promptly. A standout feature is that it doesn't rely on physical coatings for nutrient release, which can prevent issues with premature release due to mower damage. However, it's important to note that this product is not available in California or Oregon, limiting its accessibility for some users.

The granule form and easy application method make it user-friendly for homeowners. At 18 pounds, it's relatively lightweight and manageable for covering up to 5,000 square feet of lawn. This fertilizer is well-suited for maintaining a healthy lawn, particularly in areas that don't restrict phosphorus use, but users should be aware of its availability limitations and potential need for additional micronutrients.