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Re: SPEC: I. cretensis

From: Gerry Snyder <gcsnyd@loop.com>

Dennis Kramb wrote:
> I got my Iris cretensis last year when I went to Greece.  I've never seen
> it for sale in the USA but it is closely related to Iris unguicularis which
> is available from time to time.  Both of them are winter bloomers.  They
> are hardy to about Zone 9 or 10, so up here you have to grow them in
> containers and bring them indoors when it gets down to about 20 deg F.
> They definitely need cold weather to get them to bloom.  I'd say they need
> at least 4-8 weeks of near freezing temps...maybe even more?

I. unguicularis, at least, does not need nearly that much chilling. It's
been blooming here for over a month (almost 2 months, as I remember).
The low temperatures at the start of blooming were in the upper 40's or

The length of sunlight may be more important than T.

Gerry Snyder, AIS Symposium Chair
Region 15 Ass't RVP, JT Chair
Member San Fernando Valley, Southern California Iris Societies
in warm, winterless Los Angeles

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