Pencil Pine Root Damage to Pavers: Cut Trench, Don't Shave Roots

Mature pencil pines lifting driveway pavers. Owner considers shaving roots and painting cuts.

Why Shaving Roots Fails

• Creates entry points for decay fungi
• May eventually kill tree
• Roots regrow aggressively

Correct Approach

1. Cut trench along pavement edge
2. Depth: 2 ft (major root zone)
3. Sever roots cleanly
4. Install root barrier (vertical HDPE)
5. Re-cut trench every few years as roots return

Long-Term Reality

Pencil pines have aggressive roots and flammable foliage. They're poorly suited near hardscapes and structures. Consider removal and replacement with less invasive species.