Why not add all native trees to our tree canopy?
In fact there are less than a handful of trees native to the urban areas of San Diego County. The live oak is one (Quercus agrifolia? – Ask somone). Unfortunately, there are no trees native to San Diego’s coastal region.
A cardinal rule in increasing tree canopy is to be sure you plant a diversity of trees. Diversity improves eco-system health. Also it guards against losing all your trees to a disease that may decimate the population of one tree species.
Fortunately a substantial number of species exist that fit well ecologically into San Diego’s landscape and also provide the human and environmental benefits we want from our tree canopy.
Why add trees during a drought?