On 3/16/2014 6:20 PM, W wrote:
I have an irrigation zone that feeds a hedge of Varigated Pittosporums, Red
Robin Photinia, and some Oleanders. The irrigation lines are rubber hoses
on either side of the hedge roots. In observing these in action, the water
trickles out in random locations along the irrigation hoses, and the water
isn't really effectively concentrating in the roots of each plant.

My questions a

1) Does it make any sense to add a loop around the base of each hedge, to
concentrate water directly onto each plant's roots?

2) Do any of these three species require proportionately more water than the
others, maybe arguing for an irrigation loop around the base of just that
species?


All of these send out spreading roots. If they are established, uneven
watering should not be a problem.

The oleander is drought-tolerant and requires less water than the
Pittosporum or Photinia.

If you live in southern California, your oleander is doomed. There is a
blight that first appeared in San Diego County and is now seen at least
as far north as Ventura County. Oleanders are dying, and there is no
treatment yet that will save them. I already see dying oleanders in
Agoura Hills (LA County) and Thousand Oaks (Ventura County).

--
David E. Ross

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The Ukraine will be Putin's Czechoslovakia.
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