[Arid_gardener] Re: Palo Brea Problems

[Olin Miller]

More information would have been helpful, e.g.

Is the tree planted in a yard of gravel or decomposed granite,  If yes,
is there plastic under the gravel under or near the canopy that would
deprive the roots of oxygen?

With our current drought, many native trees as well as the cultivars,
should water regularly.  How frequently and how much water does the tree
receive?  Is there a basin for the water?  If yes, does it extend to the
edge of the canopy.  Or is it on a drip system?  If yes, how many
emitters?  Where are the emitters located.  What is the gap rating of
the emitters?

Olin Miller
Master Gardener Volunteer, Maricopa County AZ

"The opinions or statements expressed herein are my own and should
 not be taken as a position, opinion, or endorsement of
the University of Arizona."
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----- Original Message ----- From: <jdurnell at gmail.com>
Sent: Saturday, April 29, 2006 12:48 PM
> Joe Durnell,  85260,  jdurnell at gmail.com
> My 7-10 year-old palo brea has not leafed out well for the past two
> springs/summers.  The leaves are coming out very small and pale, and
> even the bark appears a paler green than usual.  Blooming is not very
> prolific either.  Before this there did not appear to be any problems.
> I do live in a part of Scottsdale that gets nipped by frost a few
> nights a year, and have noticed some branch die-back on this tree.