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 Toona sinensis flamingo 
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Joined: Thu Apr 24, 2008 8:58 pm
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Location: Oxford UK
Post Toona sinensis flamingo
Its's probably one of the oldest plants in my garden being planted in 1995. Not really an "edge" plant but has behaved impeccably except to now. Started to note what initially looked like desiccation of the leaves now looks more sinister. The main central trunk appears to have lost all its leaves. Normal leaf growth appears on separate branches. Here's a pic of the plant during its colourful phase
Image
After turning to normal green growth it has now started to rot? Interestingly a Lagerstroemia red imperator has lost all its leaves as well but this happened much earler. This plant though is in a pot. Anyhow sorry I digress. A pic of the Toona recently
Image
Final pic
Image
Weatherwise here absolutely no frost or cold weather. Rainfall minimal but fairly breezy to strong winds which initially brought my thoughts to desiccation.
Any thoughts anyone?

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Sun Oct 22, 2017 1:29 pm
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Post Re: Toona sinensis flamingo
I have no idea Andy. Sorry for your apparent losses.


Mon Oct 23, 2017 2:10 am
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Joined: Thu Apr 24, 2008 8:58 pm
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Location: Oxford UK
Post Re: Toona sinensis flamingo
Thanks for at least replying Tim. I usually lose a small branch or so over the Winter period and only notice when spring growth appears but what's happened now is totally different. If there is no spring growth then the tree will have to go :(

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Mon Oct 23, 2017 10:45 am
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Joined: Sat Mar 29, 2008 1:42 pm
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Location: Cornwall
Post Re: Toona sinensis flamingo
If things die back ike that in leaf here I always suspect either Honey Fungus or Phytophera, fingers crossed its just wind scorch!

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Mon Oct 23, 2017 2:19 pm
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Joined: Mon Oct 29, 2007 3:59 pm
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Location: Loughborough, Leics, central UK
Post Re: Toona sinensis flamingo
I would check the roots Andy I have in the last week dug up a similar sized Indigofera pendula I found the roots had rotted and I just spun the trunk round and it came up.......hope not though!


Mon Oct 23, 2017 3:20 pm
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Joined: Thu Apr 24, 2008 8:58 pm
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Location: Oxford UK
Post Re: Toona sinensis flamingo
charliepridham wrote:
If things die back ike that in leaf here I always suspect either Honey Fungus or Phytophera, fingers crossed its just wind scorch!


Hmmm ...well I have an old Eucalyptus trunk left over in the ground that is rotting away slowly. Hasn't affected any plants growing near it but maybe I should remove anyway.
Kev Spence wrote:
I would check the roots Andy I have in the last week dug up a similar sized Indigofera pendula I found the roots had rotted and I just spun the trunk round and it came up.......hope not though!


Kev the tree is solid as a rock and is not going anywhere. It could be a form of Phytophera as I lost all the leaves on a Lagerstroemia this year that has never happened before. A lot of browning on my Hebe leaves as well.

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Tue Oct 24, 2017 1:22 pm
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Post Re: Toona sinensis flamingo
"Phytophthora"

Strange, but true.

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Tue Oct 24, 2017 7:55 pm
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Joined: Tue Jun 14, 2011 12:01 pm
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Post Re: Toona sinensis flamingo
I'd say, either root rot (the spelling of Phytophthora is indeed, delightfully weird, though at least logically phonetic - more a case of it being a strange word, really) or a case where a containerized plant had knotted roots that slowly strangled themselves. A circumstance which could well have invited root rot organisms to be a secondary cause of morbidity and mortality.* An expert horticulturalist should be able to make a determination via simple plant necroscopy, i.e., digging up what's left. Was there an uncharacteristically heavy downpour, or period of rain, preceding this?

* - best deadpan publication name ever, in my opinion: https://en.wikipedia.org/wiki/Morbidity ... kly_Report


Thu Nov 02, 2017 11:39 am
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Post Re: Toona sinensis flamingo
Hi David... I had a dry warm summer up to mid July and then became cooler with some precipitation but not excessive by any means and then became windy and quite dry in my area. The Lagerstroemia which is in a pot lost all its leaves as well. Never happened before :?

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Thu Nov 02, 2017 9:59 pm
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Post Re: Toona sinensis flamingo
Wow, hard to say. Is even a little bit of the Toona still alive?

NB Lagerstroemia stems seem incredibly dead when they are not in leaf. I just point this out because I assume it is in the 'plants seldom grown' category in the British Isles. Still if you closely examine them you will probably see they are still alive. They are just more brittle and dry seeming than most deciduous stems.


Fri Nov 03, 2017 9:17 am
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Post Re: Toona sinensis flamingo
davidmdzn7 wrote:
Wow, hard to say. Is even a little bit of the Toona still alive?

NB Lagerstroemia stems seem incredibly dead when they are not in leaf. I just point this out because I assume it is in the 'plants seldom grown' category in the British Isles. Still if you closely examine them you will probably see they are still alive. They are just more brittle and dry seeming than most deciduous stems.


Yes currently four branches still have leaves but at this time of year they are about to drop. This species of Toona is quite finicky to say the least. Usually when the leaves are in the creamy white stage before they turn green they are susceptible to wet conditions and turn brown. However through the summer the plant recovers with fresh growth. I will just have to see how bad the damage is in the spring time .
You are correct Lagerstroemia are difficult to flower in the UK but flower well in Europe (Germany, Austria etc).

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Fri Nov 03, 2017 4:29 pm
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