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Desert Sun Intensity

Posted by Jim_in_AV none (My Page) on
Thu, Nov 1, 12 at 16:31

My Full Sail, which probably gets the least amount of sun (3 - 4 hours) in my SoCal High Desert garden has 8 buds on it today. The foliage looks happy and healthy and growth is compact (newer rose). My Lasting Love, in the same area, also looks great.

I was wondering if the intensity of the desert sun means (some) roses can do well without a full 6 or 8 hours. We had two months of very hot weather which stressed out several of my roses to no end. Now that the weather has cooled, I have a great fall flush of blooms. Full Sail and Lasting Love held up better in the heat and I'm assuming it's because they had more shade.

Any other desert (or any) gardeners have thoughts about this?


Follow-Up Postings:

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RE: Desert Sun Intensity

Jim, many people who grow REALLY good roses in the CA desert and in Southern AZ and NV give their roses some shade, using shade cloth structures.

You might fine the Desert Rose Society (Palm Springs) website helpful. (see link below)

Jeri

Here is a link that might be useful: DESERT ROSE SOCIETY


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RE: Desert Sun Intensity

Jeri,

Thank you! I found it VERY Helpful!


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RE: Desert Sun Intensity

I thought 'ya might! :-)

Jeri


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RE: Desert Sun Intensity

Jim, you definitely hit that nail right on the head. What you commonly read about roses requiring full sun, was originally written in Britain, where a "sunny day" is what we experience on a foggy or cloudy winter day. No joke. I gardened in Newhall, just south of you for eighteen years and found the roses which were the happiest, did NOT receive "full sun", but were sheltered either by other, larger plants or some other protection. Yes, give your roses as much protection from mid day and later sun as you can. Both you and the plants will be all the happier for it. Kim


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RE: Desert Sun Intensity

Yes. Even here, near the coast, the sun can be very very intense. MANY, if not MOST of our roses do best with less than "full sun."

Jeri


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RE: Desert Sun Intensity

Me too! In a broiling coastal zn9 climate, mine did best with limited full sun hrs. or in the partial shade of tall trees.

In a new desert zn8, so far, the partial shade, but lots of light situation seems to be working well for several types I'm growing.


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RE: Desert Sun Intensity

I grow roses in the Phoenix area and I would highly recommend partial shade. The roses that do the best for me have a few hours morning sun and afternoon shade. In the summer I use shade cloth for some roses. I find roses will also do well in dappled sun. I avoid subjecting my roses to "full sun", meaning sun all day long here.


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RE: Desert Sun Intensity

  • Posted by hoovb z9 Southern CA (My Page) on
    Sat, Nov 3, 12 at 11:23

I've been experimenting with shade cloth, since that is what growers use to get their for-sale perfection, and what a difference it makes. Gorgeous foliage, unblemished stems, deep rich flower color. If you can manage shade structures, you can get spectacular results. Do exhibitors use them?


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RE: Desert Sun Intensity

The roses that perform really poorly for me are those with morning shade and afternoon sun. Conversely, my best roses are in morning sun and afternoon to late afternoon shade. My Mutabilis, which is large and leafy after its alfalfa treat only gets 2-3 hours of morning sun in the winter and still does quite well. The intensity of the sun in hotter climates can really do a number on roses that are in full sun.


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RE: Desert Sun Intensity

Hoov -- You bet they do!

Ingrid -- As different as our conditions are, we find the same thing. Morning sun and afternoon shade trump morning shade and afternoon sun.

But, of course, there are only so many such locations in any garden -- so we make do. :-)

Jeri


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RE: Desert Sun Intensity

Definitely morning sun; afternoon shade. Some roses can tolerate more afternoon sun but none of mine like morning shade, afternoon sun. Little like me....


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RE: Desert Sun Intensity

  • Posted by hoovb z9 Southern CA (My Page) on
    Sun, Nov 4, 12 at 10:20

Hoov -- You bet they do!
Thanks Jeri, thought so!

Also I have noticed that if the rose gets enough sun in spring/summer/fall it can handle winter in full shade no problem. It's stored enough energy over the "sunny" months to handle the lack of sun for part of the year.


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RE: Desert Sun Intensity

Do roses really "store" energy? I have a spot surrounding a medium sized deciduous late-leafing tree. Tree is pretty naked from November -> late April, and the roses get full sun. But from May -> October, they get about 1-2 hours of sun, and a few hours of dappled sun. They do fabulously.


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