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Tuesday - July 26, 2011

From: 94803, CA
Region: California
Topic: Trees
Title: Deciduous shade tree for Inland California dry hills
Answered by: Guy Thompson


What type of tree would work well in our back yard? We're looking for a deciduous tree that doesn't grow too tall, maybe 20'. We'd like it to have spreading branches to provide shade during the summer and it needs to tolerate wind. It's going to be near the house so we don't want anything known to cause problems with foundations. We get some fog in the summer, heat in the spring and fall and rain in the winter. We'd also like a tree that's not too messy. We're replacing an almost dead fast growing brittle tree that drops branches in the winter winds, flowers in the spring, seed pods in the summer and tiny gutter clogging leaves in the fall.


Mr. Smarty Plants feels that the best bet for deciduous trees native to your area would be Quercus kelloggii (California black oak), Quercus douglasii (Blue oak), Quercus lobata (Valley oak), or Acer macrophyllum (Bigleaf maple).  The oaks all grow rather slowly, so that it would take many years for them to surpass the 20 foot height you prefer.  You will see by clicking on the underlined names that the Valley oak ultimately grows much taller than the other two species.  The growth rate of the Bigtooth maple is  considerably greater than that of the oaks.The maple naturally grows in moist valleys, and you would need to provide it with more water than needed for the oaks.  I am assuming that your homestead is in a dry area typical of your part of California.

This web site provides information about the care of oaks.  They are generally free of disease and insect problems.  But Sudden Oak Death has been found to affect some California black oak trees.  The Bigleaf maple is relatively resistant to disease.

The Lady Bird Johnson Wildflower Center Image Gallery does not contain photos of these trees, but I incluce photos from the Internet of California black oak, Blue oak, Valley oak, and Bigleaf Maple.  Any of these trees should be available at one of your local plant nurseries.  Winter is the least stressful season for tree planting.


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