Past Plants of the Day forum: Sempervivum of the Day: Oddity

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Name: Lynn
Dallas, 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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Aug 27, 2015 6:03 PM CST
Today's Hen and Chicks of the Day is Hen and Chicks (Sempervivum 'Oddity') .
This is a fun and interesting form of sempervivum that forms leaves fused into tubes with open tips, medium green leaves with dark tips. Occasionally a rosette will open from tube shape to a rosette with normal looking flat leaves. After time this rosette will again return to the fused (tube shaped) leaves.
Oddity rarely blooms, and when it does the flowers are misshaped, and usually sterile.
It is of garden origins and was introduced by Sandy McPherson in 1972, and received the Bronze Rosette award in 1978 for best new variety.
It can make very large, mounded colonies.

I have had this sempervivum since 2005, it bloomed in 2013 resulting in 3 seedlings. One died and two remain, one of which is producing offsets this year.

Please join in, if you own this plant! We would love to know more!



Also, please consider adding a "Local Report" to the ATP Plant Database! Thank you!

Hen and Chicks (Sempervivum 'Oddity')
[Last edited by valleylynn - Aug 28, 2015 8:51 PM (+)]
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Ireland . (Zone 9a)
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Paddy
Aug 28, 2015 7:59 AM CST
My Oddity was bought as a noid in April 2015 . I divided up the clump and planted up the pieces in a container. Four months later it's taking over the place and swamping it's neighbours. Here's the photo sequence, the leaves are mostly open just now .


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Name: Lynn
Dallas, 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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Aug 28, 2015 8:30 AM CST
Wow, that is impressive growth Paddy. Are you fertilizing them?
The photos are beautiful. Love the close ups.
Name: Kevin Vaughn
Salem OR (Zone 8a)
JungleShadows
Aug 28, 2015 8:41 AM CST
Lynn,

'Oddity' can sport back to 'Albidum' and those plants tend to produce more 'Albidum'. 'Oddity' is a chimera so that the epidermal cell lineages are mutant but not the core of the plant. That's why I was so excited with your very abnormal bloomstalk from a few years ago as it appeared to affect the deeper tissues and could give fully mutant seedlings. In the meristem of 'Oddity' plants the leaf primordia fuse at their backs, rather than staying as flattened structures. Very cool.

The date is wrong too. I had that plant in '72 as a gift from Sandy with the question ("What do you think?" Of course I wrote back "AMAZING!!!") and it's in Helen Payne's book that was published in '72. It's in Helen's 1973 catalog too. I don't have the copies of Sandy's list from that year.

Kevin
Name: Lynn
Dallas, 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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Aug 28, 2015 1:27 PM CST
Thank you so much for the information Kevin.

When I look at the entry for S. 'Albidum' I see this information. Can you give us some insight into what is correct?

Other Details: Albidum is one of the parents of S. 'Oditty', a natural hybrid of S. archnoideum and S. calcareum gray-green leaves, leaf bases and peaks in purple temporarily. Good winter coloring

History of species or Cultivar: Natural hybrid of S. tectorum x S. wulfenii.

Hen and Chicks (Sempervivum x comollii (x albidum))
Name: Kevin Vaughn
Salem OR (Zone 8a)
JungleShadows
Aug 28, 2015 3:09 PM CST
Lynn,

NO arachnoideum in Oddity for sure. The 'Albidum' parent plant is ether a pure tectorum or X wulfenii. I have never seen anything I would call great winter coloring in it either. Certainly nothing special to be noted.

Hope that helps!

Am not sure where the dates of introduction of these plants was put into the data base. It mist have come from one of the European lists.

Kevin
Name: Lynn
Dallas, 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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Aug 28, 2015 3:56 PM CST
Yes, the introduction date is from a European source. I will make the changes to our database entry. I sure appreciate your knowledge Kevin, thank you so much.
Ireland . (Zone 9a)
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Paddy
Aug 28, 2015 5:14 PM CST
valleylynn said:Wow, that is impressive growth Paddy. Are you fertilizing them?
The photos are beautiful. Love the close ups.


Yes Lynn I gave all my semps a weekly feed of liquid fertilizer, but have stopped feeding now to let them settle before hibernation sets in . We can't get the Miracle Gro Quick Start stuff you have in the US so I'm using a cheap alternative from the bargain store Rolling on the floor laughing
Name: Lynn
Dallas, 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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Aug 28, 2015 5:36 PM CST
That might also be why the leaves are more open in form. That is major fast growth.
Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
Seller of Garden Stuff I sent a postcard to Randy! Sempervivums Sedums Region: Wisconsin Hosted a Not-A-Raffle-Raffle
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goldfinch4
Sep 1, 2015 2:35 AM CST
I find 'Oddity' to be quite fragile here in the ground in winter - tends to rot easily. I built a bit of a mound for it this summer with lots of grit incorporated into the soil. We'll see if that helps.
Cubits Store: The Sempervivum Patch - plants, containers, accessories!
Also stop by Timber Treasures and Garden Buddies on Cubits
Name: Lynn
Dallas, 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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Sep 1, 2015 9:48 AM CST
Great information Chris. Keep us updated on the results.
Name: Chris
Ripon, Wisconsin
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Forum moderator Garden Ideas: Master Level Plant Database Moderator
Seller of Garden Stuff I sent a postcard to Randy! Sempervivums Sedums Region: Wisconsin Hosted a Not-A-Raffle-Raffle
Image
goldfinch4
Sep 1, 2015 10:27 AM CST
Will do!
Cubits Store: The Sempervivum Patch - plants, containers, accessories!
Also stop by Timber Treasures and Garden Buddies on Cubits

NorCalCollector
Nov 7, 2015 11:32 AM CST
Hello!
I'm a new collector and came across your site because I was researching an interesting Sempervivum that has me a little confused and I wanted to make sure I got it right as I have a few of them and was going to post a couple for sale on eBay and didn't want to pass them off with incorrect names. I am uploading what my tags call Albidum Oddity. Are these correct? Thanks so much for your help!
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Name: Lynn
Dallas, 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 Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Nov 7, 2015 2:20 PM CST
Hi NorCalCollector. Welcome! to ATP.

Some of your photos appears to be S. 'Grigg's Surprise', and some look like S. 'Oddity'.
Are these all from the same source, or clones from an original plant?
Go to these links and you will see the difference between them.
Hen and Chicks (Sempervivum calcareum 'Grigg's Surprise')
Hen and Chicks (Sempervivum 'Oddity')

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