10-10-10 vs 13-13-13 Fertilizer: What's the Difference?

Clemson Cooperative Extension: Fertilizing LawnsWikipedia: Fertilizer
Verdict

These two are nearly interchangeable. Choose 10-10-10 if you want maximum safety and availability. Choose 13-13-13 if you want slightly more nutrients per bag and fewer trips to the store for large properties.

How Do 10-10-10 Fertilizer and 13-13-13 Fertilizer Compare?

10-10-10 Fertilizer and 13-13-13 Fertilizer split 5 categories evenly. The breakdown below covers nutrient content, safety, availability, value per bag, ease of application.

Factor10-10-10 Fertilizer13-13-13 Fertilizer
Nutrient Content
13-13-13 provides 30% more nutrients per pound, a modest but meaningful advantage
6
7
Safety
10-10-10 has a slightly lower burn risk, though both are considered safe for general use
8
7
Availability
10-10-10 is the most widely available balanced fertilizer in North America
9
7
Value per Bag
13-13-13 delivers more nutrients per bag at a similar price point
7
8
Ease of Application
Both are granular products applied the same way with a spreader or by hand
7
7

When Should You Choose 10-10-10 Fertilizer?

Choose 10-10-10 Fertilizer when you prioritize safety, availability. 10-10-10 has a slightly lower burn risk, though both are considered safe for general use

  • Safety: 10-10-10 has a slightly lower burn risk, though both are considered safe for general use
  • Availability: 10-10-10 is the most widely available balanced fertilizer in North America

Learn more about 10-10-10 Fertilizer

When Should You Choose 13-13-13 Fertilizer?

Choose 13-13-13 Fertilizer when you prioritize nutrient content, value per bag. 13-13-13 provides 30% more nutrients per pound, a modest but meaningful advantage

  • Nutrient Content: 13-13-13 provides 30% more nutrients per pound, a modest but meaningful advantage
  • Value per Bag: 13-13-13 delivers more nutrients per bag at a similar price point

Learn more about 13-13-13 Fertilizer

Where Are They Equal?

These 1 factors showed no meaningful difference between 10-10-10 Fertilizer and 13-13-13 Fertilizer.

  • Ease of Application: Both are granular products applied the same way with a spreader or by hand

Sources

Source:Clemson Cooperative Extension: Fertilizing LawnsSource:Wikipedia: Fertilizer

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