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Re: TB: CULT: Shade vs. Sun Quandary


Mickey

Even here in South Aust, where we have very hot summers, we recommend full
sun, for at least half of the day. It doesn't seem to matter if the area is
shaded in winter, it's the baking in the summer sun that is needed to form
the flowering points. I had had iris flower in very light dappled shade, but
no more than that.

Colleen Modra
South Aust zone8 (more like 9 this winter)
-----Original Message-----
From: Mickey Corley <mcorley@compuserve.com>
To: INTERNET:iris-talk@egroups.com <iris-talk@egroups.com>
Date: Thursday, 3 August 2000 10:27
Subject: [iris-talk] TB: CULT: Shade vs. Sun Quandary


>Message text written by INTERNET:iris-talk@egroups.com
>Amy fm Austin wrote
>
>>The ideal, I have discovered, is to be planted under
>a spreading deciduous tree. <
>
>I have a 62X28 semi-circle iris bed that was created in 1960 with iris
>around the outer edges. Over the years, my iris health and bloom have
>decreased   At one time I blamed the decrease on invading  cottonwood tree
>roots.  Down the cottonwood came and roots removed -  I had a bloom
>increase for a few years.  About 15 years ago, a pecan volunteer came up in
>the center of the curved edge.  As it grew it created marvelous shade over
>the bed & driveway.  I can now start working in the bed in the morning and
>be in the SHADE all day.  I had never considered it might be shading my bed
>too much.
>
>Two years ago, I moved many of my non-blooming/non-increasing iris to my
>vegetable garden - it is shaded late in the afternoon by another pecan
>tree.  Some of the rhizomes were no larger than my little finger. They are
>shaded by another pecan tree late in the afternoon.  This year the plants
>were healthy, the rhizomes plump and large and almost every clump bloomed
>on taller bloom stalks than I had become accustomed to.  I had iris bloom
>that hadn't bloomed in years.
>
>At the same time I moved those puny iris, I dug, divided and added
>supplements to the soil of the ones I left.  The plant health didn't
>improve and had about a 30% bloom rate - no better than in past years.
>
>Pecan trees don't have a shallow root system that would affect the flower
>bed.  I now think that although iris and other sunloving plants benefit
>from some shade during the middle of summer, perhaps there can be too much
>shade even from a deciuous tree.
>
>This year I plan on having the limbs of the tree cut back severely.  If
>that doesn't help, I suppose the tree must go the way of the cottonwood.
>
>Mickey Corley
>Bethany, Oklahoma       Zone 6/7 where sun rays are pretty intense
>
>
>
>
>
>


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