help Japanese maple

sam89(Z10SF)August 13, 2012

I bought this beautiful Kara ori nishlkl maple in a gallon container for two months. Now some of the leaves are curl up.

Does any one knows what's wrong with it. Am I over-water it ?

I fed some fish emulsion to the plant before I noticed the leaves tip darken. Here are the pictures:

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jean001a(Portland OR 7b)

It went dry.

    Bookmark   August 13, 2012 at 1:59AM
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Hi jean, Could it be fertilizer burn too ? The merchant sold me the plant applied a handful slow release fertilizer in the pot that day. The plant was in display room and was in a warm place. My garden is windy and dry in day time. But it's foggy at night. The maple may be in transition shock.

    Bookmark   August 13, 2012 at 5:55PM
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Hi Sam, I would say yes to your question about fert. If your merchant put slow release in the pot and you hit it with fish emulsion, i would say too much hot sauce for this little guy. Keep in mind that tree needs afternoon shade and maybe a fall pot-up. You can pot-up these at most anytime, but if you think it needs some root-work you might want to wait until dormancy.

    Bookmark   August 15, 2012 at 1:43PM
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JM's also dont like very windy conditions either.

    Bookmark   August 21, 2012 at 12:05AM
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Thanks Al and Houstonetexas for their reply. I can't wait for fall to pot up. Today I unpotted the JM and it was a little pot bound. The soil mix is bark and gravel mix. I loosen up the root ball and mix some new bark along with some gravels in a 2 gallon pot. I chose not to disturb the root ball but the barks looked so old. Do you guys ever replaced the old aged barks with new barks ?

    Bookmark   August 23, 2012 at 1:59AM
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Sam, No...That partially decayed bark is the good stuff! The Garden Web also has a forum on potted trees and plants if you click on the 'other forums' link. There is some good tips on there as well, where they discuss potting medium in great detail.

    Bookmark   August 23, 2012 at 4:32PM
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