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Re: Cork oak - Quercus suber

>From the Sunset Western Garden Book:

"Quercus suber CORK OAK.  Evergreen.  Zones 5-7 (with occasional winter
damage), 8-16, 18-23.  [Note: there are 24 Sunset zones.  16 is me in
Oakland, 17 is San Francisco fog, 23 is southern Calif but not right at the
coast.  24 is coastal San Diego and somewhat north.  This tells me it
doesn't like coastal conditions.]

"Native to Mediterranean region.  Moderate growth rate to 70-100 feet high
and as wide.  Trunk and principal limbs covered with thick, corky bark
(cork of commerce).  The toothed, 3-inch leaves are shiny dark green above,
gray beneath.  General effect is fine textured.  Needs good drainage.
Fairly tolerant of different soil types, but likely to yellow in alkaline
soils.  Established trees can take considerable aridity.  One of best oaks
for desert.

"Good garden shade tree with interesting contrast between fairly
light-textured foliage and massive, fissured trunk.  Value as street gree
or park tree diminishes when children find out how easy it is to carve
bark."

The general instructions given for oaks include: "Full sun.  Don't water
natives; water planted ones [later it says no water needed once
estabilished]...An oak tree planted in a garden [contrasted with old
exisiting ones] will grow vigourously and fast (1 1/2-4 feet a year).  It
probably will not experience trouble--whether it's a western native or
not."

I hope this is helpful.

Cyndi

-- 
_______________________________________________________________________________
"There's nothing wrong with me.  Maybe there's                     Cyndi Norman
something wrong with the universe." (ST:TNG)                   cnorman@best.com
__________________________________________________ http://www.best.com/~cnorman
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