Trees

Community Forest & Tree Services
The Public Works Department manages Sierra Madre’s urban forest to ensure public safety and infrastructure resilience. Our team provides professional oversight for over 5,000 public trees and enforces the city’s Tree Preservation and Protection Ordinance (SMMC 12.20).

Trimming & Removal Requests

The City’s role in tree maintenance depends entirely on the tree's location and species. Please review the criteria below before submitting a request:

Parkway (City) Trees

Located between the sidewalk and the curb. The City will inspect these trees upon request to determine eligibility for trimming or removal based on health, hazard, or infrastructure impact.

Submit a Request by Email:

Private Property Trees

The City does not maintain trees on private property. However, if the tree is a Protected Species, a permit is required for removal or "Substantial Trimming" (removal of 25%+ canopy or any 3"+ limb).

Tree Permit Application

Protected Species Identification

If you have any of the following species on your property with a trunk diameter greater than 4 inches, they are protected by City ordinance.

Coast Live Oak Primary
Coast Live Oak Detail 1 Coast Live Oak Detail 2
Coast Live Oak Quercus agrifolia
Engelmann Oak Primary
Engelmann Oak Detail 1 Engelmann Oak Detail 2
Engelmann Oak Quercus engelmannii
Western Sycamore Primary
Western Sycamore Detail 1 Western Sycamore Detail 2
Western Sycamore Platanus racemosa
Black Walnut Primary
Black Walnut Detail 1 Black Walnut Detail 2
Southern CA Black Walnut Juglans californica

Pruning Standards & Cycles

To preserve health and prevent pest infestation, Sierra Madre strictly adheres to ANSI A300 pruning standards. Substantial trimming should only be performed during specific windows:

  • Oak Species: Prune only between July and September to prevent fungal infections.
  • Eucalyptus & Pine Species: Pruning should only occur between November and April when wood-boring insects are inactive.

*Hazardous trees may be pruned at any time to mitigate immediate risks to public safety.

Pest Alert: Polyphagous Shot Hole Borer (PSHB)

The PSHB is an invasive beetle found in Sierra Madre that attacks Sycamores and Oaks. It carries a fungus that causes Fusarium Dieback.

Resources & Programs

Resource Description
Adopt-A-Tree Program Residential stewardship program to enhance the community forest.
Street Tree Inventory Searchable table of existing City street trees.
Management Plan The 2014 Community Forest Management Plan.

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