Baja_Costero said:That is a pretty amazing cluster, Tarev.
Regarding propagation, I thought I'd share some things I read in Rudolf Schulz's 2007 Aeonium book, which I highly recommend.
He lists the species and varieties in a couple of tables which allow you to distinguish some differences.
For example: "suitable for the subtropics" presumably refers to heat tolerance, as it includes the species from East Africa, plus gorgoneum and haworthii, but none of the others.
Relevant to this conversation: "mature plants suitable for pots" excludes a few plants, including nobile and urbicum, due to their size. I definitely don't keep any nobiles past a year or so in pots, it seems to frustrate them immensely.
There is also a table about propagation, where the relevant part is which plants are not propagated from cuttings. The only plants on that list are there because they are usually solitary. For example, tabuliforme and nobile. But as I have seen, nobile roots quickly from cuttings taken from plants forced to branch.
Also in that table, he mentions plants which can be propagated from leaves. Some plants are apparently difficult to impossible this way, others are easy. The only plant in the category of "high success from leaves" is tabuliforme; the rest that are in the realm of possibility are labeled "low" or "moderate". My success rooting 'Cyclops' leaves was quite good when I last tried.