Flower Fertilizer Basics: Complete Formulas for Bigger Blooms and Bug-Free Roots

No fertilizer repels root-eating pests. Healthy plants resist pests better—but that's indirect.

Best Flower Formulas

• 15-30-15, 10-15-10, 20-20-20 (high middle number for blooms).
• Brands: Miracle-Gro, Peters, or store brands with same numbers.

Container vs. Ground

• Containers: Must have full micronutrient package (Miracle-Gro 15-30-15 does).
• In-ground: Any matching ratio works—soil supplies micros.

Application

• Dissolve in water per label.
• Under-dose > over-dose. Excess kills.