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Juania australis heat tolerance...

Kostas
Kostas
in DISCUSSING PALM TREES WORLDWIDE

Featured Replies

Hello!

I am thinking of trying a Juania australis but i am a bit concerned about how it will tolerate our heat. All summer long,it will be above 30C everyday and for more than a month,about 35C or more everyday...Can it stand such hot weather? It will be in Pyrgos so it will be generally humid along with the heat and there will be plenty of moisture in the ground and arround it.

I have only found 60-90cm palms so it will be pretty expensive to buy one only to loose it...

Thank you very much in advance! :)

''To try,is to risk failure.......To not try,is to guarantee it''

Kostas,

Your climate and mine are very similar, and it's much to hot to grow Juania. It wouldn't last the summer.

Dick

Richard Douglas

do not live juania in Mediterranean area :(

GIUSEPPE

I say No... his or her life would be very short, too Much heat.

Southwest
  • Author

Thank you very much all of you for your advise! :)

You all are very experienced growers so i will take your word and wont try any for now... :)

''To try,is to risk failure.......To not try,is to guarantee it''

Honestly, all the pictures from outside of Chile that I've seen show fairly unattractive plants. The one in the San Francisco Botanical Garden is far less pretty than the Rhopalostylis baueri a five minute walk away. And it's the lone survivor of a planting of six or seven. The leaves always show a nutrient deficiency or virus and the foliage lacks the grace of Ceroxylon parvifrons, also a five minute walk away. For places like Ireland, Cornwall, etc., it's probably worth growing because Rhopalostylis won't hack the climate. But Ceroxylon parvifrons is much prettier for those moist, chilly, mild maritime climates.

Now that the Garden's plant is beginning to show its trunk, I may change my opinion...as the yellow leaves grow slowly out of sight and the green ringed trunk becomes the dominant element.

Jason Dewees

Inner Sunset District

San Francisco, California

Sunset zone 17

USDA zone 10a

21 inches / 530mm annual rainfall, mostly October to April

Humidity averages 60 to 85 percent year-round.

Summer: 67F/55F | 19C/12C

Winter: 56F/44F | 13C/6C

40-year extremes: 96F/26F | 35.5C/-3.8C

I have inserted 2 rings of 6 inch nails around the base of the trunk of mine about 12 inches down and it greens it up a treat.

I believe prolonged night time temps in excess of of +20c will kill it.

Regards Andy.

Edited by AJQ

Bangor, Norin Iron Zone 9a Min temp normally around -3 Degrees C, rarely -6C. Only 2 x -2.0C so far, verging on 9b this year. No snow or Frost this Winter. Several just subzero's this year, lets hope it stays this way. Normally around 5C to 10C + in winter, with lots of wind & rain. Summers usually better, 20C to 25 C occasionally 25C to 28C, also quite humid being a coastal town
Honestly, all the pictures from outside of Chile that I've seen show fairly unattractive plants. The one in the San Francisco Botanical Garden is far less pretty than the Rhopalostylis baueri a five minute walk away. And it's the lone survivor of a planting of six or seven. The leaves always show a nutrient deficiency or virus and the foliage lacks the grace of Ceroxylon parvifrons, also a five minute walk away. For places like Ireland, Cornwall, etc., it's probably worth growing because Rhopalostylis won't hack the climate. But Ceroxylon parvifrons is much prettier for those moist, chilly, mild maritime climates.

Now that the Garden's plant is beginning to show its trunk, I may change my opinion...as the yellow leaves grow slowly out of sight and the green ringed trunk becomes the dominant element.

I agree with Jason's assesment of this genus. Frankly, the plants are less attractive than several Ceroxylon species. Juania will grow well for several years and then die suddenly. By the time the plants appear stressed it is too late and there is no hope of recovery. My garden is perhaps the closest facsimile for habitat climate but I choose not to grow this palm.

San Francisco, California

From Jason's description (I haven't seen this palm myself.), it sounds very much like some sort of nutrient deficiency. I don't know what kind of soil it is in, but, if it is sandy, it may simply need some fertilizer with a full set of nutrients. I can't imagine the SF climate is far off the Juan Fernandez Islands. Maybe a bit warmer in the autumn?

Jason

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
  • 2 years later...

Hi Kostas, this Juania live in Gipuzkoa-Spain

26032009071.jpg

You can see more information in this link:

http://www.infojardin.com/foro/showpost.ph...p;postcount=296

A few months ago I made these pictures, it looks very healthy.

post-4208-018837300 1316388070_thumb.jpg

post-4208-075486700 1316388106_thumb.jpg

Oh, Darold, grow it anyway

Let's keep our forum fun and friendly.

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  • Author

Very beautiful Alex,well done!!!smilie.gif

''To try,is to risk failure.......To not try,is to guarantee it''

So this Palm actually grows well in parts of the UK, as well as the Canary Islands? Lets post more photos, if so!!

Ireland has the best climate for growing Juania closest to the UK. Have you seen the Dublin specimen?

Don't miss Colin's (palmtreesforpleasure) thread: http://www.palmtalk....4&st=0&p=407361

FM Andy in N. Ireland also grows at least one: http://www.palmtalk....ndpost&p=404466

I germinated some seeds from a Chilean guy and I have now 2 little 2 years old healthy seedlings.

Summer temperatures here generally are around 25°C and rarely reaches 31°C in some days in January.

Fingers crossed.

Carambeí, 2nd tableland of the State Paraná , south Brazil.

Alt:1030m. Native palms: Queen, B. eriospatha, B. microspadix, Allagoptera leucocalyx , A.campestris, Geonoma schottiana, Trithrinax acanthocoma. Subtr. climate, some frosty nights. No dry season. August: driest month. Rain:1700mm

 

I am seeking for cold hardy palms!

Yeah, try a Rhopie first. If that makes it then you can think about it. I wouldn't try it where I live- and my climate is similar to yours also. Too warm.

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.

I believe that Coastal Tasmania ,with summers temps 60- 75f 16-24c with overnight average in summer of 55f 13c . Winter average 50 -60f with record low of 27f -2.8c gives us a great chance of growing Juania australis ! Alas no seeds or plants are avaliable in australia . :(

Old Beach ,Hobart
Tasmania ,Australia. 42 " south
Cool Maritime climate

Troy,your temperatures sounds ideal. Maybe a little dry...? What is the % humidity year round?

Carambeí, 2nd tableland of the State Paraná , south Brazil.

Alt:1030m. Native palms: Queen, B. eriospatha, B. microspadix, Allagoptera leucocalyx , A.campestris, Geonoma schottiana, Trithrinax acanthocoma. Subtr. climate, some frosty nights. No dry season. August: driest month. Rain:1700mm

 

I am seeking for cold hardy palms!

Alberto,where will you plant your little Juanias ? I suspect many of the problems are from planting in sun. This is an understorey palm that only reaches full sun at maturity when its crown reaches the forest canopy.

Resident in Bristol UK.

Webshop for hardy palms and hybrid seeds www.hardy-palms.co.uk

They will be planted below the araucaria forest....:rolleyes:

Carambeí, 2nd tableland of the State Paraná , south Brazil.

Alt:1030m. Native palms: Queen, B. eriospatha, B. microspadix, Allagoptera leucocalyx , A.campestris, Geonoma schottiana, Trithrinax acanthocoma. Subtr. climate, some frosty nights. No dry season. August: driest month. Rain:1700mm

 

I am seeking for cold hardy palms!

They will be planted below the araucaria forest....:rolleyes:

I hope you have a boy and a girl because they should love it there.

Resident in Bristol UK.

Webshop for hardy palms and hybrid seeds www.hardy-palms.co.uk

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