Re: Covering Iris unguicularis


I was wondering how much summer water is good for I. unguicularis.
They are from the Mediteranean and clearly tolerate summer drought
well, but I was wondering if the grow better with regular summer
waterings.

   Ken Walker
   Concord, CA USA
   USDA Zone 9, Sunset Zone 14

ptyerman@ozemail.com.au wrote:

> I always mulch heavily around mine.  Never have seemed to mind it.
> They are such a thick clump that they would never see sun on the
> rhizomes anyway, plus they tolerate full shade, so they mustn't
> require sun for flowering like the beardeds.
>
> Hope that helps.
>
> Cheers.
>
> Paul Tyerman
> Canberra, Australia


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