10 Best Organic Fertilizers 2025 in the United States

Miracle-Gro Water Soluble All Purpose Plant Food is a versatile, user-friendly fertilizer suitable for various plants, including indoor and outdoor plants, roses, flowers, houseplants, vegetables, and trees. With a significant 10 lb. container, it is designed to cover approximately 4,000 sq. ft. of garden area. This product claims to grow bigger, more beautiful plants compared to those unfed, thanks to its nutrient-rich formula that starts working instantly.

A notable strength is its easy application method; it can be used with a watering can or the Miracle-Gro Garden Feeder, making it convenient for both indoor and outdoor use. The mixing instructions are straightforward: 1/2 tsp per gallon of water for indoor plants and 1-1/2 tbsp per 1-1/2 gallon of water for outdoor plants. However, a potential drawback is that it might not be fully organic, which could be a concern for those strictly adhering to organic gardening.

Additionally, its water-soluble granules and powder form ensure quick nutrient release, which is beneficial for immediate plant needs but might require more frequent applications. It is important to consider its compatibility with your specific soil pH and the balance of nutrients it provides based on the specific needs of your garden.

Jobe’s Organics Granular All Purpose Fertilizer is a versatile option suitable for a wide range of plants, including vegetables, flowers, shrubs, and trees. Its balanced nutrient content with a 4-4-4 NPK ratio ensures that it provides essential nutrients uniformly, which is great for plant health and yields. This fertilizer stands out because it contains no synthetic chemicals and is OMRI listed, meaning it is certified for organic gardening by the USDA, making it an environmentally friendly option.

Another benefit is its ease of application; the granules can be applied every 2-3 weeks during the growing season, making it simple to maintain plant health without over-fertilizing. The 16 lbs bag ensures you have plenty to use across different plants and areas. However, there are a few considerations to keep in mind. The release rate of the nutrients might not be suitable for plants that require immediate feeding, as it may take time for the nutrients to fully integrate into the soil.

Additionally, while it is designed to avoid waste and mess, handling granular fertilizers can still be a bit cumbersome compared to liquid alternatives. Its compatibility with soil pH is generally good, but you might need to check if your specific soil conditions are ideal. If you're looking for a reliable, organic fertilizer that balances nutrients well and is easy to apply, Jobe’s Organics Granular All Purpose Fertilizer could be a solid choice.

Dr. Earth Organic 5 Tomato, Vegetable & Herb Fertilizer is a solid choice for gardeners seeking a natural way to boost their vegetable and herb growth. It offers a balanced nutrient supply with optimum levels designed to support healthy plant development without relying on synthetic chemicals. The fertilizer is made from 100% organic and natural ingredients, avoiding GMOs, chicken manure, or sewage sludge, which is reassuring for those wanting a clean, organic option. It also contains beneficial soil microbes and multiple strains of mycorrhizae, which help improve nutrient uptake and drought tolerance, supporting stronger plant performance.

The granulated form feeds plants gradually over several months, meaning you won’t have to apply it very often, and it’s suitable for medium-sized garden areas. Application is straightforward due to the granules, but users should ensure even spreading for best results. This fertilizer fits well for organic vegetable and herb gardeners looking for a trustworthy, nutrient-rich product that improves soil health while promoting tasty, abundant crops.