Description
An 8-8-8 fertilizer provides an equal 8% concentration of the three primary macronutrients: nitrogen (N) for leafy growth, phosphorus (P) for roots/flowers, and potassium (K) for overall plant health, making it a versatile, balanced “all-purpose” plant food for vegetables, fruits, trees, shrubs, and gardens. It’s considered a balanced, complete fertilizer, often available in slow-release granular forms, suitable for various plants and growth stages, but always check the specific product label for application rates and use instructions.
What the numbers mean (N-P-K)
- 8% Nitrogen (N): Promotes green, leafy growth.
- 8% Phosphorus (P): Essential for strong root development, flowering, and fruiting.
- 8% Potassium (K): Helps regulate plant functions, reduces stress, and improves overall vigor.
Uses and applications
- All-Purpose: Ideal for general gardening, vegetables, fruits, berries, herbs, trees, and shrubs.
- Balanced Nutrition: Good for establishing new plants or for maintenance during active growing seasons.
- Indoor/Outdoor: Many 8-8-8 formulas are safe for both potted and in-ground plants.
- Application: Can be mixed into the soil before planting or worked into the top layer around established plants, then watered in.








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