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Re: TB: Summer watering

Wow!  10 days over 110.  I wonder if mulch would help keep the rhizomes
cooler.  (Trees would probably be great too, of course.  Many of my irises are
under a huge willow and do very well in the part shade.)


FRANCELLE EDWARDS <FJMJEDWARDS@worldnet.att.net> said:

> I live in a subdivision of 2 acre ranchettes that are watered by a local
> irrigation district.  We are supposed to get water every two weeks in
> the summer time, but as usual, in the hottest part of the summer one of
> the pumps breaks down and we get water on a three week schedule instead.
> Last  time I watered nearly everything between irrigations, then I
> noticed that the rows that I missed stayed greener and healthier than
> the ones I watered.  Therefore this time I only watered a few.  I use
> soaker hoses for my watering.
> I notice that the irises can take heat up to 105 degrees F. without
> problems.  Above that they suffer.  We are having the hottest summer
> ever with ten days now above 110.  At those temperatures they are really
> sick, and I will lose some of the young seedlings.  A shower last night
> cooled us down to below 100 today for the first time in weeks.  We have
> had 100 degree temperatures since early May and have two more months to
> go.  In August rains and September humidity, I will have to fight rot in
> my cooked iris rhizomes.
> Francelle Edwards  Glendale, AZ  Zone 9
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