10 Best Organic Tomato Fertilizers 2025 in the United States

Burpee Organic Tomato & Vegetable Granular Plant Food is designed to provide long-lasting nourishment for your garden. One of its strong points is the easy-to-apply granule form that releases essential nutrients immediately and continues to feed plants for up to three months. This extended feeding period reduces the need for frequent applications, which is convenient for busy gardeners.

Neptune's Harvest Fish & Seaweed Fertilizer (2-3-1) is a great choice for gardeners looking to nourish their tomato plants organically. The NPK ratio (2-3-1) indicates it has a balanced mix of nitrogen, phosphorus, and potassium, essential for healthy plant growth. Being derived from fish and seaweed, it provides natural nutrients that promote vibrant flowers and foliage, as well as abundant and fragrant blooms.

Jobe’s Organics Granular Garden Fertilizer is well-suited for vegetable and tomato plants, especially for users interested in organic gardening. The fertilizer has an NPK ratio of 2-5-3, which is formulated to support high yields and vibrant foliage. This ratio indicates a moderate amount of nitrogen, higher phosphorus for root development, and potassium to aid plant health. The fertilizer is organic and OMRI listed, ensuring it contains no synthetic chemicals, making it safe and environmentally friendly.