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Dogwood Fertilization: First-Year Restriction, Then Bloom Boosters

First-year dogwoods: NO fertilizer. Year 2+: February and mid-June applications with high-phosphorus bloom formula (5-30-5).

Year-by-Year Protocol

  • Year 1: Zero fertilizer—root/foliage balance critical
  • Year 2+: Feb + mid-June, 5-30-5 liquid
  • Application: Hose-end sprayer, 1:1 fertilizer:water
  • Caution: Clean sprayer—no herbicide residue

Why High Phosphorus

  • Summer = flower bud formation for next spring
  • Phosphorus drives bud development
  • Low nitrogen prevents vegetative dominance
  • Micronutrients (Fe, Mn, Zn) in bloom formulas help

Golden Rule

"Not enough is always better than too much." Over-fertilization kills young dogwoods. Your Cornus florida and kousa need patience first, bloom boosters later.

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