Best Slow Release
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1
Dr. Earth Organic 8-4-4 All Purpose Granules
Dr. Earth's All Purpose Granules are a powerhouse blend of natural ingredients, including worm castings, bat guano, and beneficial microbes. This granular fertilizer provides a balanced NPK ratio (8-4...
2
Espoma Plant-tone Organic Fertilizer
Espoma Plant-tone is a slow-release granular fertilizer specifically formulated for acid-loving plants like azaleas, rhododendrons, and evergreens. It combines bone meal, kelp, and beneficial microbes...
3
Optimum Nutrition Gold Standard Casein
Mirroring their whey success, ON offers a reliable casein option. This is the go-to choice for users who want the trusted brand experience for slow-release nutrition. Its perfect for the pre-bedtime s...
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