Jump to content


RarePalmSeeds

Photo

Archontophoenix cunninghamiana


  • Please log in to reply
53 replies to this topic

#1 elHoagie

elHoagie

    Rank: FLOWERING

  • IPS DIRECTOR
  • 1,540 posts
  • Location:Los Angeles, CA, USA

Posted 15 January 2007 - 03:15 PM

30F (night one) - no damage
27F (night two) - no damage to three of them, one with a few brown spots on the leaves.

All 4 specimens have some trunk, but are not mature.
  • 0
Jack Sayers

East Los Angeles

growing cold tolerant palms halfway between the equator and the arctic circle...

PalmTalk Advertising

#2 doubravsky

doubravsky

    Rank: FLOWERING

  • IPS MEMBER
  • 1,015 posts
  • Gender:Male
  • Location:Riverside, CA Z 9b

Posted 15 January 2007 - 03:31 PM

24 degrees... around a dozen from 3 ft. tall to about 5 ft. of trunk. All showed some spotting but nothing major.

edit on 1/30/07... all of them ended up showing some damage... from 30-50% leaf browning/spotting. Nothing appears to be in danger of croaking.
  • 0
Dave

Riverside, CA Z 9b
1700 ft. elevation
approx 40 miles inland

#3 tropicalb

tropicalb

    Rank: FLOWERING

  • FORUM MEMBER
  • 1,285 posts
  • Location:earth

Posted 15 January 2007 - 04:28 PM

22 degrees or below...unfortunately these 5 gal palms were located at the bottom of a vicious cold drain....

fried.

Posted Image
  • 0

#4 doubravsky

doubravsky

    Rank: FLOWERING

  • IPS MEMBER
  • 1,015 posts
  • Gender:Male
  • Location:Riverside, CA Z 9b

Posted 15 January 2007 - 04:31 PM

leaf shot typical of the damage to mine:

Attached Thumbnails

  • cunninghamia_leaf_damage.JPG

  • 0
Dave

Riverside, CA Z 9b
1700 ft. elevation
approx 40 miles inland

#5 doubravsky

doubravsky

    Rank: FLOWERING

  • IPS MEMBER
  • 1,015 posts
  • Gender:Male
  • Location:Riverside, CA Z 9b

Posted 15 January 2007 - 04:31 PM

But overall they look pretty healthy still... for what they went through..

Attached Thumbnails

  • cunninghamias.JPG

  • 0
Dave

Riverside, CA Z 9b
1700 ft. elevation
approx 40 miles inland

#6 Cycadcenter

Cycadcenter

    Rank: TRUNKING

  • FORUM MEMBER
  • 839 posts
  • Gender:Male
  • Location:Fallbrook, California

Posted 15 January 2007 - 05:49 PM

Fallbrook  

Lower level of property 15-16 degrees 2 nights

We had about 40 in 5 gal. containers in a shade house.

Very interesting 35 are brown mush the other 5, not a sign of any damage.  These were seeds from Montgomery so I wonder what was nearby that these five were crossed with.   They're in the keeper pile now.
  • 0
Now living the life in Childers, Queensland.

#7 spockvr6

spockvr6

    Rank: SETTING SEED

  • FORUM MEMBER
  • 4,563 posts
  • Gender:Male
  • Location:Palm Harbor, FL / Bokeelia, FL

Posted 15 January 2007 - 06:43 PM

Did these palms see frost or just cold temps?
  • 0
Larry
Palm Harbor, FL 9b/10a
Bokeelia, FL 10b

#8 MattyB

MattyB

    Rank: SETTING SEED

  • IPS MEMBER
  • 17,013 posts
  • Gender:Male
  • Location:Spring Valley, CA (San Diego County)

Posted 15 January 2007 - 09:33 PM

Archontophoenix cunninghamiana
Several planted around just starting to show clear trunk.  They're all about 8 feet tall.
24.1F, no frost, no overhead protection
No damage other than the normal minor leaf spots that show up during winter.
  • 0
Matt Bradford
"Manambe Lavaka"
Spring Valley, CA (8.5 miles inland from San Diego Bay)
10B on the hill (635 ft. elevation)
9B in the canyon (520 ft. elevation)

#9 DoomsDave

DoomsDave

    Dave of the Dead

  • IPS DIRECTOR
  • 20,920 posts
  • Gender:Male
  • Location:La Habra, California, USA

Posted 15 January 2007 - 09:35 PM

Damage, though not as bad as the other Archies.
  • 0

Let's keep our forum fun and friendly.


#10 Don Little

Don Little

    Rank: TRUNKING

  • IPS MEMBER
  • 880 posts
  • Gender:Male
  • Location:Rancho CUCAMONGA

Posted 16 January 2007 - 12:07 AM

a triple planting in front and a double in back that saw at least 29 with no damage except what they get from dry winds that we get every year
  • 0
Don_L    Rancho CUCAMONGA (yes it does exist) 40 min due east of Los Angeles
             USDA Zone 10a
July Averages: Hi 95F, Low 62F
Jan Averages: Hi 68F, Low 45F

#11 Kathy

Kathy

    Rank: JUVENILE

  • FORUM MEMBER
  • 360 posts
  • Location:East San Francisco Bay Area, California

Posted 16 January 2007 - 09:39 AM


(Cycadcenter @ Jan. 15 2007,20:49)
QUOTE
Fallbrook  

Lower level of property 15-16 degrees 2 nights

We had about 40 in 5 gal. containers in a shade house.

Very interesting 35 are brown mush the other 5, not a sign of any damage.  These were seeds from Montgomery so I wonder what was nearby that these five were crossed with.   They're in the keeper pile now.[/quote]
Please keep those set aside!  Their seed will be gold, and I'd like some!  

Here, 24F low, no frost, minor spotting on several just-trunking (couple of inches) individuals.  
Edit:  Wrapped these, but no heat applied.  Burn on outside fronds and tips showing now, but still look good.  Maybe 15% burn.
  • 0
East San Francisco Bay Area, Brentwood, California
Zone 9B, trending 10a (until January '07 that is!)
2006-07 winter extreme minimum:  24F / -4.5 C
11-year extreme minimum average:  31.3F / -0.4C

#12 spockvr6

spockvr6

    Rank: SETTING SEED

  • FORUM MEMBER
  • 4,563 posts
  • Gender:Male
  • Location:Palm Harbor, FL / Bokeelia, FL

Posted 16 January 2007 - 09:46 AM


(Kathy @ Jan. 16 2007,12:39)
QUOTE
Here, 24F low, no frost, minor spotting.[/quote]
Minor spotting?!?!?!

Unreal!

I had three small ones that saw 34F with very light frost on the foliage last year and half the fronds looked like tropicalb's photo above.

Frost and these palms do not match, but it seems they will take some cold.
  • 0
Larry
Palm Harbor, FL 9b/10a
Bokeelia, FL 10b

#13 Patrick

Patrick

    Rank: TRUNKING

  • IPS MEMBER
  • 931 posts
  • Gender:Male
  • Location:Oakley, California.

Posted 16 January 2007 - 06:12 PM

23.4 degrees F


I think they're dead. Majorly brown. EVERYWHERE! Wilty. Really a sad sight :(
  • 0
Oakley, California
55 Miles E-NE of San Francisco, CA
Solid zone 9, I can expect at least one night in the mid to low twenties every year.
Hot, dry summers. Cold, wet winters.

#14 Jeff in Modesto

Jeff in Modesto

    Rank: FLOWERING

  • IPS MEMBER
  • 1,009 posts
  • Gender:Male
  • Location:Modesto, CA

Posted 17 January 2007 - 02:45 PM

Several larger trunking palms in my garden... to 6 ft of clear trunk.... Most are severly damaged , but look like they will survive.
My Garden low temps... 26f... Official Modesto low temp 23f.

Jeff
  • 0
Modesto, CA USDA 9b
July/August average 95f/63f
Dec/Jan average   55f/39f
Average lowest winter temp 27f
Record low temp 18f
Record high temp 113f

#15 Jim in Los Altos

Jim in Los Altos

    Rank: SETTING SEED

  • IPS MEMBER
  • 2,057 posts
  • Gender:Male
  • Location:Los Altos, California

Posted 18 January 2007 - 06:21 PM

Of my 40 A. cunninghamianas nearly half exibit at least some tip burn. It's been several days since that 26F night. Most damage is to fully exposed Illawaras, some with 50 to 60% leaf burn. Upper fronds of my oldest cunninghamianas are bronzing out some. These palms have eight to ten feet of fat trunk and are 20 years old. All understory Kings show no damage.
  • 0
Jim in Los Altos, CA  SF Bay Area 37.34N- 122.13W- 190' above sea level
zone 10a/9b
sunset zone 16
300+ palms, 90+ species in the ground
Las Palmas Design
Facebook Page
Las Palmas Design & Associates
Elegant Homes and Gardens

#16 iwan

iwan

    Rank: FLOWERING

  • FORUM MEMBER
  • 1,022 posts

Posted 18 January 2007 - 08:09 PM

Still working on the temp numbers, but 16 out of 18 days below freezing.  Most days 12+ hours below freezing, rebounding to mid-40's.  Official lows in Madera, 20's.  Some frost every day, but nowhere near as heavy as normal 28-32F freezes.  

Heavily protected, no frost on most foliage.  Protected location about 3' from south wall of house.  Protected with rope lights and 9' umbrella to protect foliage.  Hung large tarp from the umbrella to help trap in heat from the house/ground.  Showed no damage to protected fronds in December 2006 freeze (~24F radiational, crown temp never dropped below 29F).  Showed immediate bronzing of 90% when crown temp got to 24F during advective freeze.  More damage with continued temps in low 20's .  Triple planting.  Largest has 4' trunk, two smallest, just trunking.  Pictures taken today.

Posted Image

Posted Image

One of the younger ones.  I didn't initially wrap the crownshafts with a blanket (only after 5 days of freeze).  Crownshaft, spear and petioles still look good.  

Posted Image

Crown of largest.  After continued freezing, I am seeing more yellowing of the petioles and some rachis have buckled.  After the first day of advective freeze, I added a couple of towels to the crownshaft to retain the heat from the rope light before the crown temp drops to freezing.

Posted Image

It will be interesting to compare the two younger palms to the larger one to see how they survive.
---------------------------------------------------

UPDATE 2/1/2007.  I think my protection was worthwile.  2.5" of new growth over the last two weeks, even with lows in the upper 20's during the preceeding week.
  • 0
Robert

Madera, CA (central San Joaquin valley)
9A

#17 happ

happ

    Rank: SETTING SEED

  • FORUM MEMBER
  • 2,716 posts
  • Location:Northeast foothills of Los Angeles near Pasadena. South-facing hills USDA 11/Sunset 23

Posted 20 January 2007 - 08:30 AM

Photos were taken last Sunday. Will update w' closeups tomorrow.  Overall, just usual winter burns.

Posted Image

Posted Image

Posted Image
  • 0
Los Angeles/Pasadena
34° 10' N   118° 18' W
Elevation: 910'/278m
January Average Hi/Lo: 69F/50F
July Average Hi/Lo: 88F/66F
Average Rainfall: 19"/48cm
USDA 11/Sunset 23
http://cdec.water.ca...rogs/queryF?MTW

#18 ghar41

ghar41

    Rank: FLOWERING

  • IPS MEMBER
  • 1,946 posts
  • Gender:Male
  • Location:Central Valley, Ca

Posted 24 January 2007 - 01:12 PM

A.c. "Illawaras..." about 12 of them defined the cold drains in my yard.  Along with W. bifurcata, they were the most heavily damaged palms in my yard.

Those planted in the cold drains...chocolate brown.  There is a possibility they are still alive, but I doubt it.  Those planted in the less cold areas, major leaf damage, spears look ok...even green down close to where the spears emerge.

I had fires burning close to the larger ones and they are in much better shape, green on much of the leaves.

I had three days in the mid twenties...lowest recorded temp 24.9 F which was in a protected location close to my house.
  • 0
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.

             

#19 Jeff in Modesto

Jeff in Modesto

    Rank: FLOWERING

  • IPS MEMBER
  • 1,009 posts
  • Gender:Male
  • Location:Modesto, CA

Posted 24 January 2007 - 01:16 PM

Hey Glenn,
You know the W. bifurcata on the north side of my house... did pretty good. Lost a couple of leaves but is very healthy. The one under my Mac tree... DEAD.

Jeff
  • 0
Modesto, CA USDA 9b
July/August average 95f/63f
Dec/Jan average   55f/39f
Average lowest winter temp 27f
Record low temp 18f
Record high temp 113f

#20 gsn

gsn

    Rank: FLOWERING

  • StumpHead
  • 1,958 posts
  • Location:Titusville,FL

Posted 24 January 2007 - 01:23 PM


(happ @ Jan. 20 2007,11:30)
QUOTE
Photos were taken last Sunday. Will update w' closeups tomorrow.  Overall, just usual winter burns.[/quote]
Happ

What were your LOW temps? Pics of palms in this thread are of little use without temps! :;):
  • 0
Scott

Titusville, FL

1/2 mile from the Indian River

USDA Zone COLD

#21 freekypalmguy

freekypalmguy

    Rank: JUVENILE

  • IPS MEMBER
  • 350 posts
  • Location:Temecula, CA

Posted 24 January 2007 - 01:55 PM

triple apx 6' tall completely black and the spear pulled out. Lows of 22F for a few nights  and many others below freezing. Also on the shady side of my house and did not get much sun throughout the day
  • 0
Matt from Temecula, CA, 9b
Some Pics
Cycads
Posted Image

#22 happ

happ

    Rank: SETTING SEED

  • FORUM MEMBER
  • 2,716 posts
  • Location:Northeast foothills of Los Angeles near Pasadena. South-facing hills USDA 11/Sunset 23

Posted 24 January 2007 - 07:51 PM


(gsn @ Jan. 24 2007,16:23)
QUOTE

(happ @ Jan. 20 2007,11:30)
QUOTE
Photos were taken last Sunday. Will update w' closeups tomorrow.  Overall, just usual winter burns.[/quote]
Happ

What were your LOW temps? Pics of palms in this thread are of little use without temps! :;):[/quote]
Scott

Two nights in the 30's [39F & 37F] so not very close to freezing but mid-winter always shows some browning esp on kings/veitchia.
  • 0
Los Angeles/Pasadena
34° 10' N   118° 18' W
Elevation: 910'/278m
January Average Hi/Lo: 69F/50F
July Average Hi/Lo: 88F/66F
Average Rainfall: 19"/48cm
USDA 11/Sunset 23
http://cdec.water.ca...rogs/queryF?MTW

#23 Jeff in Modesto

Jeff in Modesto

    Rank: FLOWERING

  • IPS MEMBER
  • 1,009 posts
  • Gender:Male
  • Location:Modesto, CA

Posted 31 January 2007 - 02:50 PM

Here is a pic of one of my Kings... Official low in Modesto... 23f... Low on my garden thermometer 26f.
Kings are about the wimpiest palm in my garden.

Jeff

Posted Image
  • 0
Modesto, CA USDA 9b
July/August average 95f/63f
Dec/Jan average   55f/39f
Average lowest winter temp 27f
Record low temp 18f
Record high temp 113f

#24 Bayou Bob

Bayou Bob

    Rank: GERMINATING

  • FORUM MEMBER
  • 18 posts
  • Location:San Francisco Bay Area

Posted 02 February 2007 - 08:20 PM

In spite of the severity of the recent Arctic assault, a narrow swath along the eastshore of the  Bay remains essentially frost-free. I had  5-6 nights at 30-32, no damage at all to Illawarras, both Howeas, or Pritchardia minor. All the KIngs around here, through  Berkeley and around the lake in Oakland are fine, and our Palmetum in Oakland had no damage to Lepidorrrachis, Kings, Nikaus, Hedyscepe, or Juanias, as well as the Parajubaeas or Ceroxylons, or Caryota gigas.
  • 0
Zone 10a, at sea level, eastern shore of San Francisco Bay,where baymuck met dry land 100 years ago;  swampy  during the rainy season;rarely below 35F or above 95F;  Northern  California Chapter Vice-President and Oakland Lakeside Palmetum Director

#25 bahia

bahia

    Rank: JUVENILE

  • FORUM MEMBER
  • 329 posts
  • Gender:Male
  • Location:Berkeley, Ca.

Posted 03 February 2007 - 03:08 PM

Bob,
Your description of freeze damage to King Palms and Kentia palms would seem to belie the effects to be seen at the Golden Gate Palms Nursery site in Richmond, where almost every King and Kentia palm show signs of freeze damage.  I would guess that the palms weren't covered with freeze fabric, but you may have used overhead watering to try and protect them?  If you have the time, it would be interesting to hear the lowest temps you got there, and what varied protection methods worked the best for protection?

If in fact it actually did get below 25F there at the nursery, the amount of damage would seem minimal for the amount of cold.  I had some 2 years planted out Howea forsteriana and A. cunninghamiana palms in nearby Albany completely wrapped in freeze fabric prior to the first night of cold, and even so they got some slight browning of leaf tips.  I would guess the lowest temps there were down about 27/28F, with actual leaf surfaces getting a few degrees lower where the foliage was touching the fabric...
  • 0

#26 steve 9atx

steve 9atx

    Rank: TRUNKING

  • FORUM MEMBER
  • 743 posts
  • Gender:Male
  • Location:Houston, Texas

Posted 26 March 2007 - 08:45 PM

One 10' king with a brand new frond endured three consecutive days with 33F lows and another with an honest-to-goodness freeze of 30F or so for probably 4-6 hours.  Three smaller ones up to 4' tall.  No apparent damage.

Steve
  • 0
USDA Zone 9a/b, AHS Heat Zone 9, Sunset Zone 28
49'/14m above sea level, 25mi/40km to Galveston Bay
Long-term average rainfall 47.84"/1215mm
Near-term (7yr) average rainfall 55.44"/1410mm

#27 ghar41

ghar41

    Rank: FLOWERING

  • IPS MEMBER
  • 1,946 posts
  • Gender:Male
  • Location:Central Valley, Ca

Posted 31 May 2007 - 11:33 AM

Four months later.... the 6 A. c "I's" (of various sizes) that are planted close to the southeast facing wall of my house have survived and are currently showing strong growth, after having about 50% leaf burn.  

All others...placed in various positions away from the house...have lost their spears and show NO signs of life.  Some that appeared to have a chance...deteriorated over the course of the successive 2-3 cold, foggy, damp months.

The "pooch pot" fires I burned through three successive nights did not create enough warmth to save plants that were planted away from the house.
  • 0
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.

             

#28 osideterry

osideterry

    Rank: SETTING SEED

  • FORUM MEMBER
  • 3,511 posts
  • Gender:Male
  • Location:Oceanside, California

Posted 29 September 2007 - 08:31 AM

Like all my palms, saw 25-26F as a low, and experienced below freezing 5 nights in a row. This king has zero protection from the West, and takes a real beating from the wind. It's taken a long time to come back from being 100% defoliated.

Left photo - Jan 07, right photo - Sep 07.

Attached Thumbnails

  • A_cunning2.jpg

  • 0
Zone 9b/10a, Sunset Zone 22
7 miles inland. Elevation 120ft (37m)
Average annual low temp: 30F (-1C)
Average annual rainfall: 8" (20cm)

#29 _Keith

_Keith

    Rank: SETTING SEED

  • IPS MEMBER
  • 8,655 posts
  • Gender:Male
  • Location:South Louisiana (Zone 9a)

Posted 29 December 2007 - 12:09 PM

Reviving another old thread.  This is what is great about this board.  I was working in my plants today and discovered a tag on what I thought was a Archontophoenix alexandrae and found out I really had a Archontophoenix cunninghamiana.  I remembered a discussion on this board, and quickly found the cold hardiness info I was looking for.  This plant is a stretch here, but with global warming, maybe just maybe.  

Thanks folks,
Keith
  • 0

In my post I sometimes express "MY" opinion.   Please do not feel insulted if your opinion differs from my opinion.  That is fine.  You get to have one, I get to have one.  Its kind of like they teach you in Kindergarten, but we don't even have to share.  Any data in this post is provided 'as is' and in no event shall I be liable for any damages, including, without limitation, damages resulting from accuracy or lack thereof, insult, or lost profits or revenue, claims by third parties or for other similar costs, or any special, incidental, or consequential damages arising out of my opinion or the use of this data. The accuracy or reliability of the data is not guaranteed or warranted in any way and I disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use my data.  Other terms may apply.


#30 ruskinPalms

ruskinPalms

    Rank: FLOWERING

  • FORUM MEMBER
  • 1,705 posts
  • Gender:Male
  • Location:Parrish, FL

Posted 08 January 2008 - 06:56 PM

Went below 32F at 330am, went back above 32F by 830am. 5 total hours of freezing temperatures. Ultimate low of 29.7F with 7.6 "freezing degree hours" calculated as discussed in the weather forum. Moderate winds varying from NNW to NNE all night, dewpoints in low teens, no frost. No overhead canopy in my yard. No protection provided. Photos from 4 days after the freeze event.

No damage from this event.

West side of house:
Posted Image
  • 0
Parrish, FL
Zone 9B

#31 STEVE IN SO CAL

STEVE IN SO CAL

    Rank: FLOWERING

  • FORUM MEMBER
  • 1,512 posts
  • Location:(san diego north county)

Posted 28 January 2008 - 10:09 AM

Three plants, 6' clear trunk


22f, multiple hours and nights below freezing

25% leaf burn

Fully recovered
  • 0
If global warming means I can grow Cocos Nucifera, then bring it on....

#32 southlatropical

southlatropical

    Rank: JUVENILE

  • FORUM MEMBER
  • 283 posts
  • Gender:Male
  • Location:South Louisiana

Posted 22 March 2008 - 11:50 AM


(keiththibodeaux @ Dec. 29 2007,15:09)
QUOTE
Reviving another old thread.  This is what is great about this board.  I was working in my plants today and discovered a tag on what I thought was a Archontophoenix alexandrae and found out I really had a Archontophoenix cunninghamiana.  I remembered a discussion on this board, and quickly found the cold hardiness info I was looking for.  This plant is a stretch here, but with global warming, maybe just maybe.  

Thanks folks,
Keith[/quote]
Keith,
How is it looking now???
  • 0
Fordoche, LA
USDA zone 8b
National Arbor Day zone 9
AHS zone 9
Sunset zone 28
Gulf Coast climate with long hot and humid growing season, but short winters are cold and wet with several frosts. Typical lowest temp of between 22F-26F each winter with around a dozen or so nights below freezing.

#33 _Keith

_Keith

    Rank: SETTING SEED

  • IPS MEMBER
  • 8,655 posts
  • Gender:Male
  • Location:South Louisiana (Zone 9a)

Posted 22 March 2008 - 04:44 PM

Through the hardest the poor thing is not only alive, but sending up a new shoot.   Winds ahead of a nasty front took it down during the winter.  I drove in a temporary t-post next to it, and thank goodness, because with the horrendous winds last week I literally had to mumify it to the post.  It looks good though.  This must be a fairly tough palm.  It looks pretty ratty right now, for the reasons stated above, but I'll try to snap a shot of it.
  • 0

In my post I sometimes express "MY" opinion.   Please do not feel insulted if your opinion differs from my opinion.  That is fine.  You get to have one, I get to have one.  Its kind of like they teach you in Kindergarten, but we don't even have to share.  Any data in this post is provided 'as is' and in no event shall I be liable for any damages, including, without limitation, damages resulting from accuracy or lack thereof, insult, or lost profits or revenue, claims by third parties or for other similar costs, or any special, incidental, or consequential damages arising out of my opinion or the use of this data. The accuracy or reliability of the data is not guaranteed or warranted in any way and I disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use my data.  Other terms may apply.


#34 giuseppe

giuseppe

    Rank: SEED

  • Awaiting Authorisation
  • 4 posts
  • Location:italy

Posted 11 April 2008 - 03:33 AM

to Naples south-Italy,24 degrees no damage
  • 0
delli paoli giuseppe

#35 mppalms

mppalms

    Rank: TRUNKING

  • FORUM MEMBER
  • 521 posts
  • Gender:Male
  • Location:Menlo Park, CA

Posted 11 April 2008 - 08:20 AM

One of the interesting things here is that there seems to be some variability in hardiness.  I have previously heard that the A. c. 'Illawara' variety was the first of the A. c.'s to get torched.  They are from a southern coastal region.  Apparently, the northern higher-elevation forms from more inland areas take the cold better.

The eventual height of this palm has deterred me from planting it, even though it's a beautiful and commonly-available palm.  It's hard to protect (eventually), and the ones around here always seem to look a little ratty after most winters.  Has anyone made a concerted effort to separate some of the ones that survived freezes and breed them?  I think that would be a very useful effort.

Jason
  • 0
Menlo Park, CA  (U.S.A.) hillside
Min. temp Jan 2007:  28.1 deg. F (-2.2 deg. C)
Min. temp winter 2008: 34.7 deg. F (1.5 deg. C)
USDA Zone 10A since 2000

#36 ghar41

ghar41

    Rank: FLOWERING

  • IPS MEMBER
  • 1,946 posts
  • Gender:Male
  • Location:Central Valley, Ca

Posted 11 April 2008 - 11:13 AM


(mppalms @ Apr. 11 2008,12:20)
QUOTE
One of the interesting things here is that there seems to be some variability in hardiness.  I have previously heard that the A. c. 'Illawara' variety was the first of the A. c.'s to get torched.  They are from a southern coastal region.  Apparently, the northern higher-elevation forms from more inland areas take the cold better.

The eventual height of this palm has deterred me from planting it, even though it's a beautiful and commonly-available palm.  It's hard to protect (eventually), and the ones around here always seem to look a little ratty after most winters.  Has anyone made a concerted effort to separate some of the ones that survived freezes and breed them?  I think that would be a very useful effort.

Jason[/quote]
Hi Jason,

There certainly is a lot of variation among cunninghamianas.  I can say that, for whatever reason, here in the valley, the "Illawara's" that I've gotten are far superior in growth rate.  The first one I planted (96? 97?) still grows at my previous residence.

I can't say that they are any more cold tolerant than any other A cunninghamiana that Ive tried.

This was planted from a 5 gallon pot 4-5 years ago.

Attached Thumbnails

  • post_3_26036_A_illawara_spring_08_004.jpg

  • 0
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.

             

#37 ghar41

ghar41

    Rank: FLOWERING

  • IPS MEMBER
  • 1,946 posts
  • Gender:Male
  • Location:Central Valley, Ca

Posted 11 April 2008 - 11:15 AM

This is the same Illawara in my yard, planted 4-5 years ago from a 5g pot.  The wind and rain did more damage than the frost this year.

Attached Thumbnails

  • post_3_04258_A_illawara_spring_08_002.jpg

  • 0
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.

             

#38 ghar41

ghar41

    Rank: FLOWERING

  • IPS MEMBER
  • 1,946 posts
  • Gender:Male
  • Location:Central Valley, Ca

Posted 11 April 2008 - 11:17 AM

Now on the subject of mutant survivors....Inge Hoffman's A cunninghamiana in San Leandro survived the 89-90 freeze, planted in the open some 25 feet+ from her house.  She collected the seed in the Atherton Tablelands, Queensland, Australia.  It is now producing its own seed....many seedlings have been available.  They have proven to be for me, so far, slower growing.
  • 0
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.

             

#39 mppalms

mppalms

    Rank: TRUNKING

  • FORUM MEMBER
  • 521 posts
  • Gender:Male
  • Location:Menlo Park, CA

Posted 19 April 2008 - 04:54 PM

Now on the subject of mutant survivors....Inge Hoffman's A cunninghamiana in San Leandro survived the 89-90 freeze, planted in the open some 25 feet+ from her house.  She collected the seed in the Atherton Tablelands, Queensland, Australia.  It is now producing its own seed....many seedlings have been available.  They have proven to be for me, so far, slower growing.


I would love to get my hands on seeds or seedlings from a survivor palm like this one. I've heard that some of the higher-elevation A. c.'s from the north are hardier, and it sounds like this palm might be an example. I like the "look" of this palm but I've been afraid of having to remove a fried one after a good freeze. I generally follow the rule that if it's going to grow out of a protected area, it needs to be able to handle low 20s (with some non-lethal damage). Smaller palms can be a bit less freeze-tolerant.

Jason
  • 0
Menlo Park, CA  (U.S.A.) hillside
Min. temp Jan 2007:  28.1 deg. F (-2.2 deg. C)
Min. temp winter 2008: 34.7 deg. F (1.5 deg. C)
USDA Zone 10A since 2000

#40 ghar41

ghar41

    Rank: FLOWERING

  • IPS MEMBER
  • 1,946 posts
  • Gender:Male
  • Location:Central Valley, Ca

Posted 19 April 2008 - 06:14 PM

I would love to get my hands on seeds or seedlings from a survivor palm like this one.
Jason



If you come to the palm society meeting tomorrow, I'll give you one!

Glenn
  • 0
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.

             




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users