Rust-Colored Gravel and Cedar Needles: Fertilizer or Irrigation Overspray?

Likely Explanation

Rust color on driveway gravel and cedar needles usually comes from iron in fertilizer or iron-rich irrigation water—not from the trees themselves.

Check

• Recent fertilizer application? Iron content causes rust stains.
• Irrigation hitting hardscape? Test water for iron.
• Trees may be reacting to chemical changes or drought.

Adjust fertilizer placement and irrigation aim.