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My Fireglow JM has leaves turning green - confused!?!

Posted by bencjedi 6 - Central Kentucky (My Page) on
Mon, Sep 6, 10 at 1:52

My 4 year old Japanese Maple Fireglow has its bright red leaves turning green this summer. Could this be a mineral deficiency? I put 10-10-10 around the tree is early spring this year. It has been very dry in the area the last several weeks. The ground is so dry that I have cracks forming in the clay subsurface that makes up the alkaline soil here. I have not watered the tree, but maybe I should have.

The tree never had its leaves turn like this. Other than this peculiar transformation the tree has been very healthy. I'm not sure if it is a problem or not. I'd appreciate some advice or reassurance that the tree is ok. Thanks


Follow-Up Postings:

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RE: My Fireglow JM has leaves turning green - confused!?!

It happens in full sun all day long. Lack of watering may have play a role. When it cools down and get enough rain in the fall, it should revert back to red (fall color).


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RE: My Fireglow JM has leaves turning green - confused!?!

  • Posted by bencjedi 6 - Central Kentucky (My Page) on
    Tue, Sep 7, 10 at 17:00

Thanks for letting me know it is really nothing to worry about. We need rain badly here. We've had a negligible amount since early July. :(


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RE: My Fireglow JM has leaves turning green - confused!?!

I'm in southwestern KY & my 2 Bloodgoods & 1 Emperor I have all turned to a rather dark green instead of the burgundy purplish-red they're known for.

Richard.


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RE: My Fireglow JM has leaves turning green - confused!?!

I realize this post is dated, but I have to comment.
Fireglow (and Emperor 1) is one of the varieties that does BEST in full sun, retaining it's glowing red all summer. Mine, in unrelenting full sun with a horrendous drought happening -- plus 66 days over 95F -- never lost its color.

That said, I don't have any idea why yours would be turning green. Too much shade would have been MY guess, given it's engineering for full sun. Water it a bit more, definitely?

Christine


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RE: My Fireglow JM has leaves turning green - confused!?!

  • Posted by bencjedi 6 - Central Kentucky (My Page) on
    Wed, Nov 17, 10 at 11:06

Relentless drought here, but finally some nice soaking rain yesterday. It's 'fired-up' now.. the leaves actually turned red again. It gets plenty of sun in the front yard all day. It looks normal and is going into dormancy now:

From 111610

Looks like major lack of rain is what made mine turn green. It's happy again! :)


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RE: My Fireglow JM has leaves turning green - confused!?!

Oh, that's great!
I am eyeing mine for dormancy because I'm going to move it up closer to my house so I can see it better this time of year. I am addicted to red.

Enjoy your beauty!
Christine


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RE: My Fireglow JM has leaves turning green - confused!?!

Let me know if your willing to do some trading if you have some seeds. Ive been wanting to grow either Fireglow or Deshojo as a bonsai specimen. :)

-Mike


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RE: My Fireglow JM has leaves turning green - confused!?!

My guess is that the 10-10-10 fertilizer is what turned the tree green. Too much nitrogen or not enough sun can cause this effect in red maples. It looks like your tree gets a lot of sun. Maples don't need a lot of nitrogen. Too much nitrogen can cause leggy growth in Japanese maples.

Hope this helps.


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RE: My Fireglow JM has leaves turning green - confused!?!

I'd be inclined to think the alkaline soil may have been an influence rather than the fert. Unless the fert was over-applied, it is unlikely that excessive nitrogen was at issue - nitrogen is the least stable of the basic plant nutrients in the soil and is often lacking.

Mike, you DO know that seeding grown JM's cannot be considered named cultivars? There can be a huge amount of variablility in the seedlings and they often look vastly different in leaf shape and color from the parent tree. They are just generic Japanese maples, Acer palmatum species. If you want a small Fireglow (or other named form) for bonsai purposes, you will need to try from cuttings or from starter grafts. Cutting grown JM's are rather tricky to get going too.


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