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Fertilizer

What do the 3 numbers mean?

There are 3 numbers on every bag of fertilizer (no matter which type of fertilizer). Example: 29-3-4, 10-10-10, 15-30-15, 5-10-10, etc.

These 3 numbers represent the 3 key ingredients (plant foods needed by the plants) in the bags. The numbers are N-P-K (Nitrogen-Phosphorus-Potassium). They will always be in that order.

Nitrogen makes plants grow (lush green foliage, green grass, etc).

Phosphorus helps plants flower and vegetables set fruit.

Potassium is used by all plants for general health and it also is used for flowering/fruiting.

Use this guideline:
- fertilizers with numbers that are equal or where the two latter number (phosphorus and potassium) are larger, are to be used for flowering plants and fruits.

Examples: 10-10-10, 20-20-20, 14-14-14, 15-30-15, 5-10-10. You would not use a fertilizer like 29-3-4 for flowers/vegetables.
- fertilizers with numbers that have a larger first number are to be used for foliage plants (green plants) and for grass - usually grass. Examples: 29-3-4, 20-5-10, etc

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