Sempervivum forum: Rubikon versus Rubikon Improved.

Views: 347, Replies: 7 » Jump to the end
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
Image
AntMan01
Apr 18, 2018 10:41 AM CST
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?

Thumb of 2018-04-18/AntMan01/b32cce

Avatar: Jovibarba x nixonii 'Jowan'
I use #2 chicken grit to feed my hens & chicks :-)
Name: Connie
Willamette Valley OR (Zone 8a)
Forum moderator Hybridizer Region: Pacific Northwest Lilies Sempervivums Sedums
Pollen collector I was one of the first 300 contributors to the plant database! Plant Database Moderator Charter ATP Member Garden Ideas: Master Level Plant Identifier
Image
pardalinum
Apr 18, 2018 11:23 AM CST
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.
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
Image
AntMan01
Apr 18, 2018 11:27 AM CST
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 :-)
Name: Kevin Vaughn
Salem OR (Zone 8a)
JungleShadows
Apr 18, 2018 12:57 PM CST
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
Name: Connie
Willamette Valley OR (Zone 8a)
Forum moderator Hybridizer Region: Pacific Northwest Lilies Sempervivums Sedums
Pollen collector I was one of the first 300 contributors to the plant database! Plant Database Moderator Charter ATP Member Garden Ideas: Master Level Plant Identifier
Image
pardalinum
Apr 18, 2018 12:59 PM CST
Thanks for the additional information, 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 Million Pollinator Garden Challenge Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level
Image
valleylynn
Apr 18, 2018 6:30 PM CST

Moderator

Thank you Kevin, I changed 'Rubikon' to 1969.
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
Image
AntMan01
Apr 19, 2018 6:55 PM CST
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.
Thumb of 2018-04-20/AntMan01/bf740f

Avatar: Jovibarba x nixonii 'Jowan'
I use #2 chicken grit to feed my hens & chicks :-)
[Last edited by AntMan01 - Apr 19, 2018 7:08 PM (+)]
Give a thumbs up | Quote | Post #1688011 (7)
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 Million Pollinator Garden Challenge Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level
Image
valleylynn
Apr 19, 2018 7:52 PM CST

Moderator

Cool.

« Garden.org Homepage
« Back to the top
« Forums List
« Sempervivum forum
Only the members of the Members group may reply to this thread.

Member Login:

Username:

Password:

[ Join now ]

Today's site banner is by greenappleagnes and is called "Yoshino Cherry"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.