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Corkbark Chinese Elm

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Old 24-Sep-2001   #1
Jay
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Corkbark Chinese Elm

I live in Orange Co NY zone 5/6. The winter temps go into the single digits and at times (not often) below zero F. It will stay in the teens for a week or more. What is the best wintering of this type of tree? In the ground, mini cold frame, or unheated garage attached to the house on the north side with north facing windows? I have a few chinese elms but only one cork barked does the same wintering advise hold for all.
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Old 29-Sep-2001   #2
Dr.Bonsai
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Re: Corkbark Chinese Elm

Hi Jay,

I have found the roots of the corkbark elms to be rather sensitive. The very fine twigging of chinese elms in general can also make them susceptible to hard frosts.

If you can take steps to keep the soil from freezing solid, either using a soil heating cable, or locating them out of the elements during the brunt of winter the trees will recover more quickly in spring and lose less of the refined twigging.

You may treat the other Chinese Elms in a similar way. They are more hardy, but will not suffer for the protection.

From one of the greenhouse supply services or your nursery outlet, you can get an inexpensive minmax thermometer with a rotary dial or a fluid bar. These devices will record the highest and lowest temperatures observed until they are reset. One of these outdoors and one in your coldframe, greenhouse or garage will let you keep tabs on the temperature extremes.

Radio Shack also sells a couple of electronic versions of this meters, some with a remote probe to record outdoor temperature. Here is a link to one
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Old 2-Oct-2001   #3
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Re: Corkbark Chinese Elm

I leave corkbark elms where they happen to be when it starts snowing around November. They are hardy in my climate (climate zone 6b)t does get way below freezing here and the elms don't seem to mind. We are talking the cork bared ones here, which usually come from Japan. The smooth bark ones are not as hardy. They need winter protection. But I have forgotten one last year outside and it did survive temperatures of -15°C, way below freezing. It even seems to grow more vigorousely than normally after that.
Attached is a smooth barked Chinese elm, 60 cm high, about 50 years old, pot by Derek Aspinall, styled from imported raw material since 1987 by myslef. I overwinter this tree in my greenhouse wher the temperatures fall down to -5°C.

best regards
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Old 2-Oct-2001   #4
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Re: Corkbark Chinese Elm

Thank you! Walter I appreciate your input and the picture of the Elm is WONDERFUL. I am a novice, as stated before, and need all the direction I can get!! Your trees are beautiful and most certainly a standard to try and reach. Thank you Bonsai DR. for the input and reference sites.

I am attaching my first try at a pix on line of the Elm mentioned above

Again ThanKs
Jay

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Old 2-Oct-2001   #5
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Re: Corkbark Chinese Elm

Jay,

your elm looks very much like what is commonly referred to as smooth bark elm to me. Never mind, it only makes a difference in hardiness.
I have dared to work on your tree to give it some future direction which is possible.
Hope you like it.

best regards
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Old 2-Oct-2001   #6
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Re: Corkbark Chinese Elm

Having a person like Walter Paul doing a photo montage of a beginners tree on this forum is something that I will not forget for a long time. Thank you Walter Paul for taking the time to lend your expertise to all in the bonsai world. P.S. I am looking forward to Bonsai in Europe III hint hint

Regards Bonsaial
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Old 2-Oct-2001   #7
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Re: Corkbark Chinese Elm

Walter.....THANK YOU. Of course I do not mind and in fact appreciate your takeing the time to do a virtual. The picture is not that clear but I believe you have seen a possible future for my tree. I will try and go in this direction. The pot choice is also to my taste.
Thank you again

Jay
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Old 2-Oct-2001   #8
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Re: Corkbark Chinese Elm

So sorry about misspelling your name I won't let that happen again Mr. Pall.
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Old 3-Oct-2001   #9
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Re: Corkbark Chinese Elm

Walter,

Wow, the virtual tree idea really has an impact. If it is not a secret, could you tell us how you do it. I would like to be able to do this without repeatedly bothering you.
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Old 3-Oct-2001   #10
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Re: Corkbark Chinese Elm

Solidoc,
to create virtuals is not all that difficult.
You need some picture-editing program. They com from free to US$ 1500. I use Micrographix picture publisher which came free with my scanner.
Your program will have a function which is called "clone" or "copy" or similar.
With this function you can copy a part of your picture into any spot of that picture. So I can take the foliage on the upper part and copy it onto the lower part of the tree.
Most interesting is the possiblity to copy from one picture to another one. You need a collection of pictures of trees and maybe also pots (I have hundreds of such pics). Then you open the picture which you want to edit. You then open the picture which has a feature that you want to copy. You set the pictures side by side and then apply the copy "from" funtion to the second one and the copy "to" to the first one.
There is much more to it, but these are the basics.
See the picture where I stole the pot and the table from.
best regards
Walter Pall

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