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Apr 18, 2018 10:41 AM 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
Recently received 'Rubikon', and boy does it jump out with brilliant red color and dark tips and leaf backs. I naturally assumed Ed Skrocki's 'Rubicon Improved' came after 'Rubikon', but the Semp Database suggests otherwise, registration dates:
Rubikon 1974
Rubikon Improved 1970

I wonder what specific characteristics Ed Skrocki felt were improved?

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Apr 18, 2018 11:23 AM CST
Name: Connie
Willamette Valley OR (Zone 8a)
Forum moderator Region: Pacific Northwest Sedums Sempervivums Lilies Hybridizer
Plant Database Moderator I was one of the first 300 contributors to the plant database! Charter ATP Member Pollen collector Plant Identifier Celebrating Gardening: 2015
I'm looking forward to seeing how Rubikon does for you Mark. I tried it twice because it really looked great in the 4" pots I purchased. But both times it "piled up" even though I gave them ample room to grow out.
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Apr 18, 2018 11:27 AM 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
Connie, I'll keep you posted on it's progress. Looking at all of my new semps, I almost wish I could freeze them in time, a small pot with one or two perfect rosettes.
Avatar: Jovibarba x nixonii 'Jowan'
I use #2 chicken grit to feed my hens & chicks :-)
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Apr 18, 2018 12:57 PM CST
Name: Kevin Vaughn
Salem OR (Zone 8a)
Rubikon definitely was the first one. It was not as good a grower and Ed ad a similar seedling that grew much better. The dates are wrong. Rubikon was named at least in '69 as I had it growing in my garden then.

Both of these were open pollinated seedlings from a plant that was listed in the trade as "Rubicundum". It was a marmoreum form.

Kevin
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Apr 18, 2018 12:59 PM CST
Name: Connie
Willamette Valley OR (Zone 8a)
Forum moderator Region: Pacific Northwest Sedums Sempervivums Lilies Hybridizer
Plant Database Moderator I was one of the first 300 contributors to the plant database! Charter ATP Member Pollen collector Plant Identifier Celebrating Gardening: 2015
Thanks for the additional information, Kevin.
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Apr 18, 2018 6:30 PM CST
Moderator
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
Thank you Kevin, I changed 'Rubikon' to 1969.
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Apr 19, 2018 6:55 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
Here's a page from Mina Colvin's catalog (Colvin gardens) from 1979. What I liked about her catalog is that she added personalized descriptions of the plants she sold, I had bought a fair number of semps from her. The list of cultivars was long, almost 10 pages, on page 8 we see 'Rubikon' (although spelled Rubicon), 'Rubicon Improved' (also not using the "k" spelling, so I wonder about this "k" spelling thing), and 'Rubicundum'. I would pour over the various semp catalogs and make notes.

I find these old catalogs give useful insight on cultivar ID, whether they're correct or not. In 1979, prices for most semps was $1.00, a few years earlier many sold for 70 cents, LOL.
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Avatar: Jovibarba x nixonii 'Jowan'
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Last edited by AntMan01 Apr 19, 2018 7:08 PM Icon for preview
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Apr 19, 2018 7:52 PM CST
Moderator
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
Cool.
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