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Re: RE: Deep planting

I am glad that worked for you.  I can't say deeper planting helps my 
survival rate
at all.  Of the new TB's that I received third week in August that year 
and which
I had planted that way only 50% survived.  A bigger factor in the 
survival rate for
me is when I plant them.  I rarely lose any irises if I plant them in July.

SE Manitoba
winter to -40 and colder this last winter....

Debby wrote:

>I fully realise I'm a complete novice with iris, but I have to say that I'll
>swear by planting deeper than traditionally recommended.
>I purchased about 18 or so iris from Chuck last year, and had another dozen
>I'd got in trades. I planted them all to Chuck's recommended deeper depth
>for cold areas (I'm in Canadian 2b - winters to -40). It looks like they
>have come through with flying colours... even the TB's which had never done
>well for me. And the increases on the SDB's are really impressive - some
>have 5 or 6 new fans!
>Happily looking forward to seeing them bloom for the first time,
>Debby, Sk. Canada
>The difference between a Terrier and a Terrorist?  You can negotiate with a
>>I'm in Canadian Zone 5b which translate to approximatly 4 USA zone rating.
>>The deeper planting doesn't seem to inhibit blooming in spite of the
>theory re backs need to be exposed t osunlight.
>>Bloom quanity and increases will also be recorded.
>>The rhizomes are basically enlarged stems. The plants in the wild grow
>on/near the surface as in large clumps they have nowhere else to grow. Also
>in these large old clumps the old rhizomes provide anchor and prevent
>heaving. This is not what happens in modern culture where the trigger size
>( size of rhizome needed to trigger a bloom) are large and need extra space
>and more frequent moving in order to perform. We loose the anchoring funtion
>of the older rhizomes with established root structure , and their anchoring
>grip on rocks in the soil.
>>Chuck Chapman
>To sign-off this list, send email to majordomo@hort.net with the
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