10 Best Tomato Fertilizers 2026 in the United States

This 10-10-10 slow-release fertilizer offers a balanced mix of nitrogen, phosphorus, and potassium, which are essential nutrients for healthy tomato plants. Its granular form makes it easy to spread evenly in your garden. The slow-release formula means it feeds your plants for up to 8 weeks, reducing how often you need to apply it—typically twice per season for vegetables like tomatoes.

It also includes a quick-release nitrogen component to give your plants an immediate growth boost, which is handy for jump-starting your tomato plants early on. While this fertilizer is synthetic, it’s versatile enough for a wide range of outdoor plants, including tomatoes, flowers, shrubs, and fruit trees. Just remember to water after application to help the nutrients soak into the soil.

For tomato growers seeking an easy-to-use, balanced fertilizer with steady feeding and occasional quick boosts, this product fits well. Its all-purpose nature suits gardeners who want a simple, reliable fertilizer without fussing over specialized mixes.

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.

The 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. It contains essential nutrients that are designed to promote larger and more beautiful plants. The fertilizer can be used every one to two weeks, making it a frequent maintenance choice for gardeners. It's easy to use with either a watering can or the Miracle-Gro Garden Feeder, which makes application straightforward and convenient.

One key benefit is that it’s safe for all plants and won’t cause burning when used as directed, offering peace of mind to users. On the downside, the product is synthetic, which might not appeal to those preferring organic fertilizers. Additionally, as a water-soluble powder, it requires proper mixing with water before application. Users should also keep in mind that frequent applications may require more time and effort compared to slow-release fertilizers.

Its broad applicability makes it a strong choice for general gardening needs, though tomato-specific users might need to consider the NPK ratio more closely.