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Mar 12, 2020 10:00 AM CST
Name: Thea
West Wendover, Nevada (Zone 6b)
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 Icon for preview
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Mar 12, 2020 11:18 AM CST
Name: Thea
West Wendover, Nevada (Zone 6b)
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...
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Mar 12, 2020 1:10 PM CST
Name: Kevin Vaughn
Salem OR (Zone 8a)
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
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Mar 12, 2020 2:16 PM CST
Name: Thea
West Wendover, Nevada (Zone 6b)
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!
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Mar 12, 2020 7:09 PM CST
Name: Mark McDonough
Massachusetts (Zone 5a)
Region: Massachusetts Enjoys or suffers cold winters Garden Procrastinator Native Plants and Wildflowers Garden Photography Foliage Fan
Birds Seed Starter Hybridizer Sempervivums
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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Mar 12, 2020 7:46 PM CST
Name: Sol Zimmerdahl
Portland, Oregon (Zone 8b)
Container Gardener Garden Art Sempervivums
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 Icon for preview
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Mar 12, 2020 8:30 PM CST
Name: Thea
West Wendover, Nevada (Zone 6b)
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!
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Mar 12, 2020 10:40 PM CST
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Name: Lynn
Oregon City, OR (Zone 8b)
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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?
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Mar 14, 2020 12:44 PM CST
Name: Sol Zimmerdahl
Portland, Oregon (Zone 8b)
Container Gardener Garden Art Sempervivums
Thanks Thea,
All the more reason for me to root for you to get one!
-Sol
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Mar 15, 2020 1:19 AM CST
Romania, Mures (Zone 6b)
Region: Europe Roses Sedums Sempervivums
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 Icon for preview
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Mar 15, 2020 7:42 AM CST
Moderator
Name: Lynn
Oregon City, OR (Zone 8b)
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Paleo, what a wonderful thing to find growing in the wild. Where did you take this photo?
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Mar 15, 2020 10:08 AM CST
Romania, Mures (Zone 6b)
Region: Europe Roses Sedums Sempervivums
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 Icon for preview
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Mar 15, 2020 1:02 PM CST
Moderator
Name: Lynn
Oregon City, OR (Zone 8b)
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I also wish you had that photo. Sounds amazing.
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Mar 15, 2020 1:32 PM CST
Name: Dirt
(Zone 5b)
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Crazy! but cool Blinking
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Mar 26, 2020 2:11 PM CST
Plants Admin
Name: Ângelo
South Jordan, Utah, USA (Zone 7a)
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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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Mar 26, 2020 2:31 PM CST
Moderator
Name: Lynn
Oregon City, OR (Zone 8b)
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I wonder how hardy they will be?
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Mar 26, 2020 3:15 PM CST
Name: Thea
West Wendover, Nevada (Zone 6b)
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!
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Mar 26, 2020 3:46 PM CST
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Name: Lynn
Oregon City, OR (Zone 8b)
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Thank you for the update Thea.
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Mar 27, 2020 1:00 AM CST
Name: Greg Colucci
Seattle WA (Zone 8b)
Sempervivums Sedums Plant Lover: Loves 'em all! Cactus and Succulents Container Gardener Garden Ideas: Level 1
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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 Icon for preview
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Mar 27, 2020 7:35 PM CST
Name: Kevin Vaughn
Salem OR (Zone 8a)
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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