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Archontophoenix cunninghamiana


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#41 freakypalmguy

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Posted 06 January 2009 - 11:00 AM

27F and many hours and nights at or below freezing. Three foot tall Illawara 80% brown. Central spear was just starting to unfurl and is looking bad.
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Hot and dry in the summer, cold with light frost in the winter. Halfway between the desert and the ocean.
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#42 SouthSeaNate

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Posted 17 January 2009 - 09:38 AM

Archontophoenix cunninghamiana, rather stupidly growing in England :mrlooney:

2 @ approx 9ft tall with no overhead canopy have badly burnt & "bronzed" fronds, mostly on the highest ones. Lowest temperature -2C (28F), plus a few other nights down to freezing or just below. One night it was below freezing for around 15 hours! :unsure: They are still very much alive, they had horticultural fleece wrapped around them & a duvet cover over the top. Unfortunately they had already been damaged before I decided to wrap them...

2 smaller ones, 1 @ approx 2ft tall & another @ 5ft, received no protection other than natural canopy above & suffered no real damage...
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South Coast UK
Mild Winters, Warm(ish) Summers, Sunniest Part of UK
Zone 9b (Sort Of)
2005/2006 Winter Low -1C (30F)
2006/2007 Winter Low 0.2C (32.3F)
2007/2008 Winter Low 1C (34F)
2008/2009 Winter Low -2C (28F)
2009/2010 Winter Low -2.5C (27.5F)
2010/2011 Winter Low -2.3C (27.8F)

#43 tikitiki

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Posted 22 January 2009 - 11:26 AM

triple in the ground for about 3 years. Ranging from 1ft of trunk to 3 foot. Little protection. It started to show some browning after the first night at 32f with no frost. Now after the 2nd and some frost it is looking worse. Still just cosmectic damage at this point.l I hope.
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Fill it up with good red wine,
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#44 Dave-Vero

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Posted 22 January 2009 - 04:56 PM

31-32 degrees from 9:30 pm until near dawn, 30 at dawn. Dry air, no frost. My A. cunninghamiana with maybe 4 feet of trunk, total height at least 15 feet suffered no visible damage. We'll see how tonight (probably a bit warmer) goes.
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Fla. climate center: 100-119 days>85 F
USDA 1990 hardiness zone 9B
Florida Climate Center zone 10a
arborday.org 2004 hardiness zone 10
4 km inland from Indian River

#45 ruskinPalms

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Posted 23 January 2009 - 02:35 PM

Low of 27.3, radiational freeze, no wind, unprotected. below freezing from approximately 12:30 AM to 8:15 AM. Lots of frost. Pictures 36 hours after the freeze.

OK condition so far...very minor browning.
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Parrish, FL
Zone 9B

#46 Rafael

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Posted 07 April 2009 - 01:05 AM

Could anyone tell me if cunninghamiana is stronger than alexandrae facing frost and freeze. And how much stronger.
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#47 velutina

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Posted 07 February 2011 - 09:10 PM

I have a 3' trunk A. cunninghamiana that has just survived it's second winter here with minimal protection (christmas lights). It has seen temps between 26-28F and no damage.
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Coconut Grove, FL

Zone 10B

 


#48 Sutter Bob

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Posted 09 February 2011 - 08:24 PM

Here are a few young ones (3 winters) after being hacked by me after typical winter damage.
R. baueri in middle.
Low 27F.

Attached Thumbnails

  • Rhopalostylis1.jpg

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#49 Dave-Vero

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Posted 10 February 2011 - 11:59 AM

Our low temperature in December was 26 F (-3 C) with lots of wind at the airport, less than a mile away. 28 degrees two weeks later.

Archontophoenix cunninghamiana, with partial sky blockage from a tall oak but clear sky directly overhead, suffered no significant damage, only barely-noticeable leaf browning.

Archontophoenix tuckeri, next to it, suffered maybe 50% leaf browning, unsightly but not very harmful to the tree, which, along with two others, has resumed normal growth.


This is a rather bad photo of my tree, which is the tall feather-leaf hiding behind an Acoelorraphe wrightii and a native Simpson stopper bush (Myricianthes fragrans). To the rear, you can see damaged leaves from Syagrus schizophylla and Satakentia liukiuensis (pretty much ruined). In the foreground, a Zamia pumila is shedding leaflets.

A cunninghamina Feb.jpg



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Fla. climate center: 100-119 days>85 F
USDA 1990 hardiness zone 9B
Florida Climate Center zone 10a
arborday.org 2004 hardiness zone 10
4 km inland from Indian River

#50 Sutter Bob

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Posted 08 July 2012 - 04:06 PM

Had a low of 20F six months ago. Lost about five cunninghamianas - all in the open. The three shown above under cover of tall pine all doing fine.
Others rebounding with moderate defoliation. I'm definitely on the borderland for this one, but under tall cover or south side of house worth a try.
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#51 ghar41

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Posted 11 July 2012 - 04:41 PM

Hi Bob,

Ive had good success with Daconil poured right down the throat of burnt A. cunninghamiana spears and have saved them that way. More recently Ive taken the advice given here on palmtalk to use Hydrogen Peroxide the same way- it works well also and is cheaper and non toxic. See post #31 on the following thread:

http://www.palmtalk....showtopic=32990
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Glenn
Modesto, California

Sunset Zone 14   USDA 9b

Low Temp. 19F/-7C 12-20-1990         

High Temp. 111F/43C 07-23-2006

Annual Average Precipitation 13.12 inches/yr.

             

#52 enigma99

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Posted 26 December 2012 - 01:45 AM

I also live in the area. (Rocklin/Roseville) My Kings have been around for a few winters now. I used to wrap them and use hydrogen peroxide after freezes, but now I just use propane. One 89.99 Home Depot patio heater 48,000 btu, can warm a huge part of the yard. And how often does it get below freezing? Or below 30 when the Kings start burning? A couple nights a winter.
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#53 Sutter Bob

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Posted 26 December 2012 - 11:56 PM

Used peroxide on some last winter after the deep freeze and suspect it might have made a difference.

Like the idea of the propane heater but am getting lazier and just letting them fend for themselves this year.


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#54 zootropical

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Posted 25 January 2013 - 11:49 AM

Dear all,

Any news after the last cold snap in west USA?

Sincerely.

JM


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