Newly Planted Sycamores Declining: Water, Mulch & Stake Removal

Richmond, CA: HOA-planted sycamores (June/July last year) look dead—little foliage, yellow-brown leaves. High wind area.

Diagnosis

• Sycamores drought-sensitive; need regular water.
• Sprinkler 3×/wk, 5 min may not soak root ball.
• Cold summer + rain ≠ adequate deep watering.
• Check: pull one dead tree — roots grew into native soil? Or hole glazed like pot?

Fixes

1. Mulch 3″ to 3 ft radius (donut shape, kill grass with Roundup first).
2. Deep water: 1″ per week (pan test).
3. Stakes: remove after 1 growing season (root anchor), not by trunk diameter.

Varieties

All Platanus occidentalis similar; prefer sandy over clay. Drought tolerance moderate.