Trees

They far exceed our short little maybe 80-90 year span on this earth. I mean we're so temporary. But the trees, these ancient trees, they cannot be taken for granted. Because you cannot replace an old growth forest.

Once it's gone it's gone for good.

Arborist Blair Glenn

Guides

• Show me your root flare!

• How to Properly Prune Using the 3-Cut Method and The Reduction Cut

• Tree Pruning Essentials

• Tree Planting Guide

The following applies to the Los Angeles area of Southern California.

Natives

• Quercus agrifolia, California Live Oak, Coast Live Oak

• Quercus engelmannii, Engelmann Oak, Pasadena Oak

• Juglans californica, California Walnut, Southern California Black Walnut

• Washingtonia filifera, California Fan Palm

Non-Natives

• Cedrus deodara, Himalayan cedar, Deodar cedar

• Pinus pinea, Italian Stone Pine, Mediterranean stone pine, umbrella pine, parasol pine

Invasives

• Ailanthus altissima, Tree of Heaven, Chinese sumac

• Schinus terebinthifolius, Brazilian Pepper Tree

• Ulmus parvifolia, Chinese Elm

• Washingtonia robusta, Mexican Fan Palm

• Eucalyptus spp.

Understory Shrubs

• Heteromeles arbutifolia, Toyon, Christmas Berry, California Holly