10 Best Tomato Fertilizers 2025 in the United States

Burpee Organic Blood Meal Fertilizer is a natural, organic option designed to boost nitrogen levels in soil, which is essential for healthy tomato plant growth. Its high nitrogen content (12-0-0) makes it especially good for leafy vegetables and fruiting plants like tomatoes, helping them develop stronger stems and richer foliage. Since it’s organic and OMRI listed, it fits well for gardeners looking to avoid synthetic chemicals. The fertilizer comes in granule form and is easy to mix into potting soil or garden beds. It also supports soil health by encouraging beneficial microorganisms and can act as a mild pest repellent against animals like deer and rabbits, which is a nice bonus.

It doesn’t provide phosphorus or potassium, which are also important nutrients for tomatoes, so you might need to use it alongside other fertilizers to cover all needs. Application frequency should be moderate, following package instructions, as too much nitrogen can lead to excessive leaf growth at the expense of fruit. If you want an organic fertilizer focused on nitrogen to help your tomatoes grow strong, this product is a solid choice, especially for home gardeners aiming for natural gardening methods.

Burpee Organic Tomato & Vegetable Granular Plant Food is a well-regarded choice for gardeners looking for an organic fertilizer. It comes in a 4-pound package and is easy to apply, providing long-lasting results by releasing nutrients over a period of up to 3 months. This makes it convenient for those who prefer not to fertilize frequently. The product is OMRI listed, ensuring it is suitable for organic gardening practices.

The fertilizer supports robust growth and healthy plants by supplying essential nutrients continuously throughout the growing season. It is well-suited for tomatoes and other vegetables, but may not be the best choice for those seeking a synthetic fertilizer with immediate, intense nutrient delivery. Burpee's long-standing reputation and commitment to quality make this a reliable option for organic gardeners aiming for superior yield and plant health.

Burpee Bone Meal Fertilizer is an organic, powder-form fertilizer ideal for tomato plants, peppers, and bulbs. It primarily provides phosphorus and calcium, which are essential for strong root development and healthy fruit growth—important for tomatoes that need sturdy roots and good nutrition. Being OMRI listed means it meets organic gardening standards, making it a good choice if you prefer natural products over synthetic fertilizers. The slow-release nature of bone meal means it feeds plants gradually, supporting steady growth throughout the season.

Since it is mainly rich in phosphorus and calcium with only small amounts of nitrogen, it does not offer a balanced NPK ratio, so you might need to supplement with other fertilizers for well-rounded nutrition. Application is easy—just mix it into soil or potting mix before planting or anytime during the growing season—but it’s best used cautiously, since too much phosphorus can harm plants. This product is well-suited for gardeners looking to boost root strength and flower development organically, especially if growing tomatoes in containers or garden beds.

On the downside, it lacks additional micronutrients like magnesium or iron that tomatoes also benefit from, so it’s not a complete fertilizer by itself. To sum up, Burpee Bone Meal is a trusted, natural option that supports strong roots and healthy tomato plants but should be part of a broader fertilizing plan to meet all nutrient needs.