18-24-6 Starter vs 10-10-10 Fertilizer: When to Use Each

Scotts: Turf Builder Starter Food for New GrassClemson Cooperative Extension: Fertilizing Lawns
Verdict

Use 18-24-6 when seeding new lawns, sodding, or establishing new plantings where root development is critical. Switch to 10-10-10 for ongoing maintenance of established gardens, lawns, and landscapes.

How Do 18-24-6 Starter Fertilizer and 10-10-10 Fertilizer Compare?

10-10-10 Fertilizer wins 3 of 5 categories. The breakdown below covers new lawn establishment, transplant success, ongoing maintenance, cost, frequency of use.

Factor18-24-6 Starter Fertilizer10-10-10 Fertilizer
New Lawn Establishment
High phosphorus promotes rapid root development in newly seeded or sodded lawns
9
5
Transplant Success
Extra phosphorus reduces transplant shock and accelerates root establishment in new plantings
9
6
Ongoing Maintenance
10-10-10 is the standard for regular feeding of established plants. Starter formulas are not needed
4
9
Cost
Starter fertilizers cost 30-50% more per bag than standard 10-10-10
5
8
Frequency of Use
10-10-10 is used multiple times per season. 18-24-6 is typically a one-time application
5
9

When Should You Choose 18-24-6 Starter Fertilizer?

Choose 18-24-6 Starter Fertilizer when you prioritize new lawn establishment, transplant success. High phosphorus promotes rapid root development in newly seeded or sodded lawns

  • New Lawn Establishment: High phosphorus promotes rapid root development in newly seeded or sodded lawns
  • Transplant Success: Extra phosphorus reduces transplant shock and accelerates root establishment in new plantings

When Should You Choose 10-10-10 Fertilizer?

Choose 10-10-10 Fertilizer when you prioritize ongoing maintenance, cost, frequency of use. 10-10-10 is the standard for regular feeding of established plants. Starter formulas are not needed

  • Ongoing Maintenance: 10-10-10 is the standard for regular feeding of established plants. Starter formulas are not needed
  • Cost: Starter fertilizers cost 30-50% more per bag than standard 10-10-10
  • Frequency of Use: 10-10-10 is used multiple times per season. 18-24-6 is typically a one-time application

Learn more about 10-10-10 Fertilizer

Sources

Source:Scotts: Turf Builder Starter Food for New GrassSource:Clemson Cooperative Extension: Fertilizing Lawns

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