10 Best Organic Lawn Fertilizer 2025 in the United States

The O.M. Scott & Sons Natural Grass Food is a notable option for those seeking an organic lawn fertilizer. One of its major strengths is the use of premium nutrient sources derived from nature, which supports healthy grass growth from the roots up. It's designed to provide continuous feeding for up to 10 weeks, which means less frequent application is needed, making it more convenient for busy homeowners. Additionally, it's safe for people and pets when used as directed, making it a family-friendly option.

This product is suitable for all grass types and covers up to 2,000 square feet, ensuring broad usability and efficiency. The packaging is also environmentally friendly, being recyclable which adds to its appeal for eco-conscious consumers. If you're looking for an organic fertilizer that is easy to use, environmentally friendly, and well-reviewed, this could be a good match for your lawn care needs.

Jobe's Organics Granular All Purpose Fertilizer is a versatile choice for organic gardening, designed to nourish various plants including vegetables, flowers, shrubs, and trees. The 16-pound bag is easy to manage and contains granules with a balanced NPK ratio of 4-4-4, which is beneficial for promoting healthy plant growth and vibrant foliage. One of the product's standout features is its organic composition, free from synthetic chemicals and OMRI listed for organic gardening, reassuring users of its environmentally-friendly nature.

The fertilizer is designed to minimize wasteful runoff, mess, and odors, making it a convenient choice for gardeners who want to maintain a tidy workspace. Its granular form allows for straightforward application every 2-3 weeks during the growing season, ensuring plants receive consistent nourishment without the risk of over-fertilization.

In terms of microbial content, the product is formulated to support soil health, aiding in root development, plant growth, and soil conditioning. This can be particularly useful for gardeners dealing with pest resistance and drought conditions. The simplicity of a 4-4-4 mixing ratio may not cater to specific nutrient needs for certain plant types that require varying levels of nitrogen, phosphorus, or potassium. Also, while the resealable packaging is convenient, its size and weight might be cumbersome for those with limited storage space.

Jobe's Organics Fertilizer performs well in adhering to organic gardening standards, offering an accessible solution for maintaining plant health while being mindful of the environment.

The Organic Plant Magic Truly Organic™ Slow Release Granular Lawn Fertilizer is a comprehensive option for anyone looking to nurture their lawn organically. One of its standout features is its balanced nutrient release thanks to its slow-release granules. The source of nutrients is highly commendable, containing amino and humic acids along with beneficial biology, which are key components for healthy grass growth. This makes it versatile for various types of grasses like Bermuda and St. Augustine, and useful across different seasons and regions.

The microbial content is another strong aspect, as it biologically increases the availability of air, water, and nutrients to the grass, enhancing its resilience and growth. In terms of environmental impact, this product is notably safe for kids, pets, and the environment, aligning with organic growing principles by avoiding toxic ingredients. Application is user-friendly, with a clear application chart and granules that flow evenly through spreaders, making it easy even for those new to lawn care.

A notable advantage is that it doesn’t burn the grass, reducing the risk of application errors. Its strong environmental credentials and ease of use make it a great choice for anyone aiming for an organic approach to lawn care.