Saturday, November 17, 2012

Trees That Please Nursery: 30 Days of Fall Foliage, Saturday November 17th.


Mexican Blue Oak

Mexican Blue Oak (Quercus Oblongifolia) is a New Mexico native evergreen or tardily deciduous tree. As its name implies, it can be recognized by its blue leaves.


Its species name, oblongifolia, refers to its oblong leaves. Mexican Blue Oak is in the white oak family so it may hybridize with other white oak species like Gambel Oak, Gray Oak, and Turbinella Oak. As an oak its fruit is an acorn.

Mexican Blue Oak is a smaller tree reaching about 15’ – 20’ tall and wide. After establishment it can add about 1’ – 1.5’ of growth annually. It has a tap root or deep root system so can be planted closer to structures than surface rooted trees like willows or mulberries.

As an evergreen, the Mexican Blue Oak does not have any change in fall foliage. Instead it retains its beautiful blue foliage through fall and winter.


Its evergreen (ever-blue leaves)
 
 
and bark on more mature specimens adds winter interest to your landscape.

 
The Mexican Blue Oak is best grown with low to regular water in well-drained soils but also tolerates clay. This Oak is hardy to USDA zone 5.

Contact Trees That Please Nursery for more information and pricing.

Written By:
Stephen Sain
Staff Plant Physiologist

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