Information from sempervivum-liste.de
Listing in: Sighting Garden Weihenstephan "Sempervivum and Jovibarba - Attempt of a Systematic Representation" (1977), author H. Müssel (here from facsimile reprint 2005 by Semperpost-Verlag, Wedel), p. 9 - as S. "aureum" under "Forms of the Tectorum Group"
At M. Haberer as S. tectorum var. aureum (collection list) and tectorum aureum (label). For A. Smits as AS4942 Species aureum b.
No entry in: Eggli, Urs (eds): Succulent lexicon, Vol.4, 2003
Zaubergarten said:This new breeding is growing and reproduces well. The inspiration for the name came from Erwin Geiger. He immediately said that such a Semps must be called 'Dracula'.
A quote from Kevin Vaughn:
"The parentage of 'Jungle Shadows' is officially unknown, but I found it near the clump of 'Silvertone' and I had made the cross with 'Atroviolaceum' that year. That's probably the cross."
This cultivar originally came to us (MCG) from a private collection. The collectors' names were Jim and Irene Russ of Igo, CA. They ran a small nursery which they sold in 1995. That collection made up the bulk of our original collection: https://mountaincrestgardens.c...
JungleShadows said:
'Pacific Feather Power' is one I'm suspicious of being marmoreum and arachnoideum and one of the seedlings from PFP X self gave a nice red marmoreum type. Several of the cobwebs from this group are reddish too.
Kevin, do you have any ideas of what is behind 'Killer' that it would produce such a tiny child such as 'Red Hot Chili'?
JungleShadows said:Lynn,
The pod parent is 'Killer', a wide-leaved and big rosette so it's pollen parent must have differed considerably in form and size, with more pointed leaves, waxier and smaller. The progeny from 'Killer' X self varied from small ones like 'Red Hot Chili' to huge ones like 'Big Six-O' and everything in between. About half of the seedlings were red/ green bicolors and the rest reds to red-purples so LOTS of genes segregating. It has been exciting to watch each generation and their combination with the 'Jungle Shadows' group that gave the exceptional dark self-colored rosettes and dark base of the leaves seedlings.
There is a F3 seedling that we have jokingly called "Killer on Steroids" as it's like a MUCH brighter 'Killer'. it's being evaluated for introduction now. I selfed it and will plant that seed to get the F4.
JungleShadows said:OK for one Pekinese was not hybridized per se. All of Helen's introductions were small seedlings that came in the box with the plants from Sandy MacPherson. Being frugal, Helen planted these and named any that appeared distinctive. Pekinese was one of these.
It isn't pure arachnoideum but probably has a bit of marmoreum in it. It doesn't look like the typical tufted from tectorum X arachnoideum. No indication of any roller in it. The flowers are typical semp flowers and it has fertile pollen. Any semp X roller hybrid is sterile.
Yes I grew Ramses way back. It was a sort of a sooty red with fairly broad leaves for the time. Think Helen sort of repudiated it after the newer reds started coming out from Skroki and me. That was 45 years ago though and a lot of water has gone over the dam since then!
MelissaHopper said:My Borscht semp is doing something different.
The biggest rosette, the one in the middle, has started to get ruffles on it's leaves. I have never seen this before.
Closeup
Bigtattoo said:Melissa, the 'Borscht' you sent me is showing some rippling as well. I wonder if this is a winter anomaly. Don't some semps develop warts in winter, then they disappear with new growth in the spring? Could this rippling be a similar effect? Kevin, Lynn, anybody??
JungleShadows said:The ripples are due to uneven growth. Groups of adjacent cells are growing faster than the surrounding cells so the cells from the rapidly growing areas bulge upward. The bumps are in the center of the leaf not the edges. These seem to be a proliferation of cells at these points in the leaf.
This line is full of watermarks and they are likewise due to differences in cell expansion and wax deposition.
It will be interesting to see if down the line I can make these features more or less constant.
Variety is the spice of life!
Kevin
Thank you for the explanation Kevin. Very interesting.
What I have seen marked "Engles" should actually be 'Engle's 13-2'. It is similar but not identical to 'Purdy's 90-1' and 'Aymon Correvon'. When they did the Dalton project to determine the correct names, the thought was that 'Aymon Correvon' ( then recently renamed from "Correvon's hybrid") is the correct name for all three. Helen Payne STRONGLY disagreed with this decision. Since then she was proven right. At the Dalton project, plants going into bloom were quickly removed so that none of the stock plants could be contaminated by seedlings. However, the blooms of these cultivars are different, especially comparing 'Aymon Correvon' to the other two. 'Aymon Correvon' is also BIGGER than the other two. 'Engle's 13-2' has the most compact rosette and leaf shape, with 'Purdy's 90-1' a bit more elongated.
All three are from a montanum X wulfenii cross, probably F1, as that hybrid tends to be sterile or nearly so. I was looking at my notebook from my youth and in '68 I tried to raise seedlings from both 'Engle's 13-2' and 'Purdy's 90-1' and did so each year for 4 years with NO seedlings. My notebook says "seed looks odd, lots of chaff". Both montanum and wulfenii are diploids and their chromosomes must be enough different that it's impossible or nearly so for them to produce normal gametes. Each year here in Oregon I let the bees try to cross 'Aymon Correvon' and each year I dutifully plant the seed, noting "more chaff than seed" still. Despite planting all the open pollinated seed from 4-6 stalks each year not a single seedling has germinated. 'Greenwich Time' which is montanum X calcareum cross (again two diploids) has netted me ONE seedling. It is a nice one though!
JungleShadows said:'Greenwich Time' is from 'Cleveland Morgan' X calcareum. It goes through a couple phases, sometimes looking like a more purple larger version of 'Cleveland Morgan' and sometimes looking like a velvety calcareum. Helen didn't believe me when I told her the pedigree as she had never had calcareum bloom. Several years later a box arrived from Helen with a blooming calcareum and a note attached saying "I believe you now".
It was from my very first year of crossing, If you cover the calcareum stalk you will see that it makes TONS (well maybe not tons, but lots) of pollen. I dud use 'Extra' and 'Guillaume' in crosses last year and rediscovered what I had known in '64: calcareums make lots of pollen!
The only bad thing about 'Greenwich Time' is that it's a cross of two diploids and nearly sterile. I had one seedling last year and about 6 this year from open pollinations. I do save those as they are likely to be odd combinations of things genetically.
JungleShadows said:Holly Jolly is one of the more unusually patterned Killer seedlings and it did SCREAM XMAS because of the red and green coloration. It's not as big as some of the others from those groups.
Oddly enough I haven't used it much in crosses. I was concentrating on the bigger siblings. (much to Bev's chagrin!)
JungleShadows said:Aymon Correvon and Belladonna are nearly sterile. Aymon Correvon is a montanum X wulfenii cross so two diploids with different chromosome counts. It is the plant equivalent of a mule. Belladonna is montanum X somebody but i'm not sure who. I still try each year to cross on to Aymon but so far not seedling one. Greenwich Time is montanum X calcareum and i have exactly ONE seedling. It is a nice one though!
JungleShadows said:Aymon Correvon and Belladonna are nearly sterile. Aymon Correvon is a montanum X wulfenii cross so two diploids with different chromosome counts. It is the plant equivalent of a mule. Belladonna is montanum X somebody but i'm not sure who. I still try each year to cross on to Aymon but so far not seedling one. Greenwich Time is montanum X calcareum and i have exactly ONE seedling. It is a nice one though!
I am fond of Sempervivum Tectorum because it has actually been in my family for 100 years! It was only here at garden.org that I found out it was a "Semp" - we always just called them Hens & Chicks. Until recently, I thought there was only one variety of Semps, but the Semp forum here is extremely active and I found there are many, many varieties of Semps. Some of them are mostly red, and some of them are rather fuzzy. I don't think all of those may be as hardy as this one though - this one is very hardy (at least a hundred years hardy!). I live in Ohio (zone 6) and my semps do very well here - both in summer and winter. Each 'hen" sends out smaller ones, called "chicks." They grow in a big mass and make a good ground cover for sunny areas. I also use them for erosion control and they are great for that. They are trouble free, require minimal water, and weeds or grass will not grow through them at all. When I transplant them to different areas, I just pull them up, lay them down where I want them, and sprinkle a little dirt over the root. They look great all lined up along a walkway and will keep soil from washing onto the sidewalk. On occasion, they will bloom - sending up a tall stalk with pink flowers on them. Blooming signals their death though, which is not usually a problem because they usually produce several chicks first. And if you are interested in crossing Semps to breed new varieties, you need them to bloom to do that. The Semp forum is great here, and can help you with that, or give you more information.
This is a lovely arachnoideum type semp when grown well. Observing it over the years I find that it does not do well in full sun during our 2 to 3 months of drought season here in the Pacific Northwest. It tends to burn easily under full sun conditions. If given some protection during the hottest part of the day, say 1/2 day sun or filtered bright light, they will reward you with a lovely colony of web covered semps. Most of the webbing disappears during the wet winter and spring months, but returns with vigor once things warm up and dry out.
JungleShadows said: It's one that I gave the whole clump to Toby (Young's Garden Center). It's number was A2-7 and my notes say "bright red, with better red color than Killer". That's about right. It also seems to be one of the bigger ones from the self pollination, harking more back to Killer's pod parent in form and color.
Kevin
youngsgarden said:"That's one of Kevin's (Vaughn's) cultivars. It was one from the first year that
he got back into hybridizing semps.
He was using Killer a lot then if I recall correctly.
Because there were so many good varieties in Kevin's first batch of seedlings,
that one was never officially named.
We kept the unnamed seedling because we liked it a lot and it increases well.
One of our children started calling it Dragon's Eye so
when we began selling it in 2016 we just put that name to it.
Hope that helps,
Toby Lander
Young's Garden"
This is a natural form of sempervivum marmoreum, not a tectorum:
Sempervivum schlehanii var. Tokajense Domokos in Magyar Kir. Kert. Tanintéz. Közlem. 2: 39. 1936.
From: Letz, D. R .: A new species of the Sempervivum marmoreum group
In Central Europe
Add a plant
Search by name
Search by type
Plant Combinations