10 Best Fertilizer For Tomatoes 2025 in the United States

The Burpee Organic Tomato & Vegetable Granular Plant Food is designed to deliver long-lasting nutrients to your tomato plants, with a special formula that releases essential nutrients immediately and sustains them for up to 3 months. This product is OMRI listed for organic use, ensuring it's suitable for those who prefer environmentally friendly gardening options.

Its composition includes an NPK ratio that's balanced for plant health, helping tomatoes grow strong and produce bountiful yields. Additionally, the granular form makes it easy to apply, and it's versatile enough to be used with a variety of other vegetables. However, it's important to note that the product's effectiveness can depend on the specific soil pH of your garden, so it might be necessary to adjust your soil conditions for optimal results.

The large 4-pound package might be more than what small-scale gardeners need. Burpee’s longstanding reputation makes it a trusted choice for those looking to enhance their tomato garden organically.

This 10-10-10 slow-release granular fertilizer offers a balanced mix of nitrogen, phosphorus, and potassium in equal amounts, which supports healthy tomato growth by promoting strong roots, lush leaves, and vibrant fruits. The slow-release formula provides nutrients steadily for up to eight weeks, meaning fewer applications are needed—a real time-saver for busy gardeners.

It's suitable for both outdoor and indoor plants and easy to apply with its fine granules that spread evenly and absorb well into the soil. This balanced NPK ratio makes it a versatile choice for general tomato feeding.

For those wanting an all-purpose fertilizer that supports healthy tomato plants without fuss, this product delivers consistent nutrition, though those seeking organic options or specific micronutrient boosts might want to consider alternatives.

The FoxFarm Fertilizer Soil Trio Liquid Nutrient is a comprehensive pack of three different fertilizers designed to support the growth of tomatoes and other plants. It includes Grow Big for lush vegetative growth, Big Bloom for regular feeding, and Tiger Bloom for promoting abundant fruit and flower development.

The trio is a liquid concentrate, making it easy to apply with water, and the included Twin Canaries Conversion Chart helps users measure the right amounts for their plants. One of the strengths of this product is its organic certification (OMRI Listed and CDFA Registered), making it suitable for those who prefer environmentally friendly options.

The NPK ratios are designed to cover different growth stages, which is beneficial for tomatoes that require varying nutrients throughout their lifecycle. While it covers a broad range of soil pH levels, users with highly specific soil conditions may need to adjust accordingly. If you're looking for a versatile, organic fertilizer solution for your tomatoes, this trio could be a strong choice.