Sempervivum forum→xSemponium

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Name: Thea
West Wendover, Nevada (Zone 6b)
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Greenfire
Mar 12, 2020 10:00 AM CST
One of my facebook groups shared this photo today, the comment was "Just reading with interest somebody has managed to hybridise an Aeonium with a Sempervivum to create xSemponium, a brand new cold hardy intergeneric hybrid."

I'm asking them for more info, anyone know anything about it? I would really love to learn more! I don't know what publication that is from, hopefully someone in here recognises it.


Thumb of 2020-03-12/Greenfire/4fe863

edit: apparently it'll go on sale at the Chelsea Flower Show in May (UK)

[Last edited by Greenfire - Mar 12, 2020 10:01 AM (+)]
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Name: Thea
West Wendover, Nevada (Zone 6b)
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Greenfire
Mar 12, 2020 11:18 AM CST
Okay, more info, the publication is the most recent quarterly journal from the British Cactus and Succulent Society.

The Semponium is Sempervivum "Green Ice" crossed with Aeonium Smith I x Aeonium "Cyclops" by Surreal Succulents

Green Ice:

Thumb of 2020-03-12/Greenfire/9e27bc

Cyclops:

Thumb of 2020-03-12/Greenfire/b74915

link to website: https://surrealsucculents.co.u...

Name: Kevin Vaughn
Salem OR (Zone 8a)
JungleShadows
Mar 12, 2020 1:10 PM CST
Very cool.

I'm getting semps that look like Aeoniums even without making the cross!

I'd still be skeptical how hardy these are!

Kevin
Name: Thea
West Wendover, Nevada (Zone 6b)
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Greenfire
Mar 12, 2020 2:16 PM CST
Yes, they haven't released any zone info, but it's also likely they don't know yet. I'd be curious if they exhibit the same growth patterns though, I would love a tree form cold hardy rosette!
Name: Mark McDonough
Massachusetts (Zone 5a)
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AntMan01
Mar 12, 2020 7:09 PM CST
Indeed, very cool. I'm with Kevin, skeptical that the intergeneric hybrid will be hardy. In fact, I wonder about crossing a tropical genus with one that MUST experience cold winter dormancy, it might not be a winning cross in the long run.
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Name: Sol Zimmerdahl
Portland, Oregon (Zone 8b)
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GeologicalForms
Mar 12, 2020 7:46 PM CST
Thea,
Sounds interesting! The picture looks much more like an Aeonium than a sempervivum. Hard to believe it was green ice that bridged the gap, as I understand sempervivums are not even remotely related to aeoniums. In the old days they assumed the two had some relation because of the similarity of form, but genetic testing proved that the similarities were a result of convergent evolution. All things considered I'd love to have one!
-Sol Z
[Last edited by GeologicalForms - Mar 12, 2020 7:47 PM (+)]
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Name: Thea
West Wendover, Nevada (Zone 6b)
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Greenfire
Mar 12, 2020 8:30 PM CST
GeologicalForms said:Thea,
Sounds interesting! The picture looks much more like an Aeonium than a sempervivum. Hard to believe it was green ice that bridged the gap, as I understand sempervivums are not even remotely related to aeoniums. In the old days they assumed the two had some relation because of the similarity of form, but genetic testing proved that the similarities were a result of convergent evolution. All things considered I'd love to have one!
-Sol Z


If I somehow ever get my hands on any (and I'm talking to friends over there already) I will for sure put you at the top of the list if I can get more than one!
Name: Lynn
Oregon City, OR (Zone 8b)
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valleylynn
Mar 12, 2020 10:40 PM CST

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Thea, that is so interesting. I also wonder if it is really winter hardy just looking at the leaves. Bet it wouldn't last in our Pacific Northwest cold, wet winters. Wonder if it would remain hardy if kept dry on a covered deck?
Name: Sol Zimmerdahl
Portland, Oregon (Zone 8b)
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GeologicalForms
Mar 14, 2020 12:44 PM CST
Thanks Thea,
All the more reason for me to root for you to get one!
-Sol
Romania, Mures (Zone 6b)
Sedums Sempervivums Region: Europe Roses
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PaleoTemp
Mar 15, 2020 1:19 AM CST
Not all aeonium grow tall in nature, yet seems people favor the ones with a tall stem.
I have seen some species just grow at rock level.
Some of these are often 1ft in diameter or even bigger.

There are nice colonies in some places, but with huge rosettes, just can't find those photos of mine, just this solitary one. The colonies were looking much more impressive.
This is in Tenerife, wild plant.

Thumb of 2020-03-15/PaleoTemp/a440a3

[Last edited by PaleoTemp - Mar 15, 2020 10:08 AM (+)]
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Name: Lynn
Oregon City, OR (Zone 8b)
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valleylynn
Mar 15, 2020 7:42 AM CST

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Paleo, what a wonderful thing to find growing in the wild. Where did you take this photo?
Romania, Mures (Zone 6b)
Sedums Sempervivums Region: Europe Roses
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PaleoTemp
Mar 15, 2020 10:08 AM CST
valleylynn said:Paleo, what a wonderful thing to find growing in the wild. Where did you take this photo?


Very much indeed, in Anaga, Tenerife.
Wish I had the photos with the colonies on the rocks of the same species.
[Last edited by PaleoTemp - Mar 15, 2020 10:50 AM (+)]
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Name: Lynn
Oregon City, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Mar 15, 2020 1:02 PM CST

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I also wish you had that photo. Sounds amazing.
Name: Dirt
(Zone 5b)
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dirtdorphins
Mar 15, 2020 1:32 PM CST
Crazy! but cool Blinking
Name: Ângelo B. P.
South Jordan, Utah, USA (Zone 7a)
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BlueOddish
Mar 26, 2020 2:11 PM CST

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I just found this thread!!! Drooling Drooling Drooling Drooling

I can't wait to get my hands on one!!!
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Eu falo Português!
Art by Kagemaru Himeno.
Name: Lynn
Oregon City, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Mar 26, 2020 2:31 PM CST

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I wonder how hardy they will be?
Name: Thea
West Wendover, Nevada (Zone 6b)
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Greenfire
Mar 26, 2020 3:15 PM CST
The flower show was cancelled, so they still haven't made a formal announcement about it. They do plan to though, and said they have several surprising new plants to share. I don't know if any others of them are semp crosses, but I'll share if they are!
Name: Lynn
Oregon City, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Million Pollinator Garden Challenge Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level
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valleylynn
Mar 26, 2020 3:46 PM CST

Moderator

Thank you for the update Thea.
Name: Greg Colucci
Seattle WA (Zone 8b)
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gg5
Mar 27, 2020 1:00 AM CST
wow Thea that is exciting!!
Although yes makes sense it may not be cold hardy to same zones as semps but a USDA zone 7 would be just fine (I know I'm selfish) :tongue_smilie:
Also if it got that large wow that would be amazing :hurray:
I tip my hat to you.

[Last edited by valleylynn - Mar 27, 2020 2:36 AM (+)]
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Name: Kevin Vaughn
Salem OR (Zone 8a)
JungleShadows
Mar 27, 2020 7:35 PM CST
I just received the journal of the Sedum Society and they are very dubious about this hybrid as it "shows no characteristics of the Sempervivum".

Odd too that they chose 'Green Ice' as it is a little hard to get good seed set. My best crop is this year, where I got ~40. That is had-crossed and selfed.

Kevin

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