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Chinese Elm

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Old 9-Feb-2005   #1
TedPenfold
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Chinese Elm

I purchased a chinese elm, 15yrs old, a couple of weeks back.

I am very pleased with it, it's beautiful.

I am a little worried, as it is developing yellow leaves.

I keep it some way in front of an east facing window, there has not been any sunshine to speak of so far.

I have it on a humid tray and mist it daily.

We have central heating on in the morning for two hours and the even for 4 or five hours.

I think I see some new leaves growing.

Yellowing of the leaves is daily. I have taken off the old yellow leaves and next day there are more - 6 or 10 or so.

Your advise would be appreciated
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Old 9-Feb-2005   #2
Henke
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Tedpenfold!

I can give you a quote from "Pocket Bonsai" by David Prescott. He says;
"Chinese Elm kept indoors will loose their leaves in response to changes in location, so find a spot your tree likes, and leave it there."

I think it's very common that Ch Elms loose their leaves when recently purchased and brought to a new environment. It will recover, don't worry about that!
What you really should worry about though, is the lighting. If you're going to keep it indoors, you'll need to invest in a simple set of flourscent strip lights. Put it 6" above the foilage of the tree, but not moore than 16 hours of the day. This has done the trick for all my indoor trees, like Serissas and ficuses as well as Ch. Elms.
Cheers!
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Old 9-Feb-2005   #3
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Also, since its in its humidity tray, keep an eye out for water staying in the tray and seeping back up into the bottom of the pot. This can lead to root-rot, no bonsai's friend.

GoodLuck!
-Evan
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Old 10-Feb-2005   #4
TedPenfold
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Thanks for your kind replies, Henke and Evan

Two more questions.

It's mid winter here. If I keep it outside, when it the best time to transfer it outside and where do I keep it - is there a best position/conditions? i.e. green house, ??

When it the best time to prune? Top and roots?

So many questions, so little time

Oh, and is there a good way to ensure the roots don't get too wet from the humidity tray?

Thank you so much for you help.

Ted
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Old 10-Feb-2005   #5
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Heres some 'general care' I found for you about the chinese elm.

General Care : Shelter from harsh conditions and cold weather, however most varieties of Chinese Elm are quite frost hardy.

Prune after the growth period (early spring), leaving the one or two nodes closest to the main trunk or branch.

Water moderately year round, but keep the plant moist at all times, keeping in mind to water well during spring and early summer.

Repot in early spring, every 1-3 years, but this must be either a month before or after pruning to ensure that the plant sustains the least shock possible.

Find the rest at: http://www.bonsaisite.com/chineseelm.html

Hope this helps!
-Evan
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Old 10-Feb-2005   #6
TedPenfold
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Thank you Evan.

When they are over wintered outside, do the roots/pot have to be protected? I think I read a while back that the roots can be frost damaged if not covered?

If so, what is the best way of protecting them?

EDIT:

I found the answer here:

http://forum.bonsaitalk.com/showthread.php?t=6167

Last edited by TedPenfold : 10-Feb-2005 at 11:37 AM. Reason: Found Answer
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Old 10-Feb-2005   #7
Henke
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Hi again

I think you should wait til spring before you take it outside, and let it get used to it in its own pace. I placed mine in a cold shed yesterday to see if I can make it dormant, but just because I am reckless doesn't mean you should be! But later on, when it has recovered, I quite convinced it needs a repotting. I can tell by the pot that it probably comes from the same nursery stock as mine! Those mallsai soils are often very compacted and clayey and the roots will eventually rot if not given a freedraining soil! (I assume that the tree on your avatar is the one we're talking about, if not, forget what I said about the pot!!)
Anyways, don't do anything hasty, read a lot on the subject, that will keep you from a lot of fiascos! Good luck!!

-cheers!
Ps regarding the humidity tray, the water level must never reach the drainage holes of the pot. They must be clear or the roots will be waterlogged and rot!! Ds

Last edited by Henke : 10-Feb-2005 at 05:23 PM. Reason: wasn't finished
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