A. Planting patterns. Street trees shall be planted per Section 5.10.060 (Public Frontages).

B. Planting details. Street trees shall be planted per City of Petaluma Street Tree Planting Detail, page 101, with the addition of structural soil (see below). Install root barriers as required per City of Petaluma Root Barrier Standard Detail Number 102.

C. Soil. Placement of structural soil 8’ minimum length along the street, centered on street tree, 6’ minimum wide x 24” minimum deep is required as a planting medium under sidewalks for street trees in areas where new sidewalks are to be constructed.

D. Mulch. Mulch shall be walk-on mulch.

E. Irrigation. Irrigation shall be provided for street trees in areas where new sidewalks are to be constructed. “Bladder” type irrigation may be provided by the City of Petaluma to existing sidewalk areas on a case by case basis.