Best Fertilizer Method for Trees and Shrubs: Granular Broadcast

Mature trees near fertilized lawns rarely need extra feeding. Shrubs benefit from annual granular application.

Method Ranking

1. Granular slow-release broadcast under dripline — best for shrubs, easy, effective.
2. Fertilizer spikes/deep root feeding — only to avoid fertilizing surrounding lawn/beds. Not more effective for the tree.
3. Liquid — short-lived, frequent reapplication needed.

Key Points

• Feeder roots are in top soil layers—surface broadcast reaches them.
• Acid-loving shrubs (azalea, rhododendron, holly): Use Holly-tone or Miracid.
• Fertilize once yearly in spring.