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New How-To Videos: Watering Trees During Drought

Watering Young Trees


Watering Mature Trees



Find out why transporting oak firewood is having an impact on native oaks.


Sycamore Tree Pruning Season is now! The optimal time frame for pruning this native tree is approximately November – April

Please take a moment and consult with your local tree care professional about the proper care of the native sycamore tree(s) growing in your yard. If pruning is necessary, now is the time to perform this type of maintenance, while the branches are bare and before new leaf buds break (usually in early spring). Our native plane tree, Platanus racemosa, is a unique individual in the sycamore family. Commonly called the Western or California sycamore, this tree is found only in this region of the country. It remains a stable historic component in the California landscape of stream sides, rocky canyons, moist valleys, and arid foothills.

Permit applications are available on this website, in addition to a listing of Local Tree Care Professionals, who can assist you in making the best decisions based on arboricultural standards and practices.

For more information on our protected sycamore tree, click here or visit Verdugo Park located at 1621 N. Canada Blvd., to experience the trees first-hand.


Living Among Oaks can be a Sticky Situation!

"Drippy oak or acorns is a bacterial disease causing a clear to brownish, viscous liquid to drip from live oak acorns, leaves, or twigs." (from the web page at the link below.

Learn more about drippy oaks and acorns.


Polyphagus shot hole borer

Learn more about pest information regarding the Polyphagus shot hole borer.


Glendale Fire Prevention Bureau and Defensible Space Concepts


The City of Glendale Free Mulch Program continues to be available

The mulch is a product of the City’s tree trimming operations that is replenished regularly and the amounts vary from week to week. Anytime is a great time to add a layer of mulch to your landscape. Mulch suppresses weeds, holds moisture and supplies nutrients to the soil. The Free Mulch Program has allowed Glendale to give back to the community and the environment by converting unusable green material into a valuable resource. Residents may pick up loads of tree trimming mulch from Brand Park using their own vehicles and tools and at their own risk. For more information, please call Public Works Maintenance Services at (818) 548-3950.

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