Viewing post #730537 by valleylynn

valleylynn said:Kevin can you point me to information on the above three Sempervivum (‘Purdy’s 90-1’, ‘Engle’s 13-2’ and ‘Aymon Correvon’) being the same plant?

JungleShadows said:Lynn,
I don't know when it became 'Aymon Correvon'. It may have been to distinguish it from the heuff that was "Correvon's Hybrid' that became 'Henri Correvon'. I wasn't privvy to any of those changes.
Anyway, this is the description of the plant that was sent to the US and this was the one deemed identical to 'Purdy's 90-1' and 'Engle's 13-2'. Helen did think 'Engle's 13-2' had a slightly different leaf shape but the plants grown in adjacent beds at the Crane planting even measured the same. The latter could be a seedling of it which might explain the minor fluctuations.
Bill Nixon was convinced they were all the same. Helen thought Engle's 13-2 was different.
Here's the description from Peter Mitchell's book of 'Corrrevon's Hybrid'.
"Sempervivum 'Correvon's Hybrid'
The origin of this unusually coloured hybrid is unknown. The velvety grey-green rosettes are medium sized. Does not produce many offsets, but otherwise a worthwhile addition"
Peter did NOT like the hybrids and was pushing the species. All the hybrids in his book occupied like 3 pages whereas the species were covered in the remainder! That's not my view of the semp world, even back in the 70's. He really hated the "Skrocki method"!! His wife did some hybridizing, but it was mainly towards incorporating some of the species into the hybrids.
Hope that helps clarify all this Lynn.
Kevin