10 Best Organic Plant Fertilizers 2025 in the United States

Miracle-Gro Fruit & Citrus Plant Food Spikes are specifically designed for those looking to enhance the growth of their fruit, citrus, and palm trees. The spikes are easy to use, releasing nutrients directly into the root zone which promotes strong growth and lush foliage. This product is convenient because you only need to apply it once per season in both Spring and Fall, making it low-maintenance compared to other fertilizers that require more frequent applications.

Miracle-Gro Indoor Plant Food is a liquid fertilizer designed specifically for indoor plants like snake plants, peace lilies, herbs, and vegetables. It provides nutrients instantly, making it ideal for quick feeding without waiting for slow release. The application is simple—you can either pump the concentrate directly into the soil or dilute it in water to feed your plants as usual.

The FoxFarm Fertilizer Soil Trio Liquid Nutrient includes three different products: Grow Big, Big Bloom, and Tiger Bloom. Each serves a distinct purpose in promoting plant growth. Grow Big is a liquid concentrate fertilizer that supports lush vegetative growth. Big Bloom is an organic plant food suitable for use every time you water, and Tiger Bloom is a phosphorus fertilizer designed to enhance fruit, flower, and bud development. All three products are designed to work together, providing comprehensive support for vigorous growth and abundant yield.