Phedimus floriferus is taking over Saxifraga paniculata's pot?
I do not have this species, neither the seller had it at the time I was there.

Hi Milan, how nice, a bonus plant. Are you going to move it to it's own container? I would be concerned that it might overtake your lovely saxifraga.
When it blooms it should be easier to identify which Phedimus it is, there are several in our database that might match yours.
https://garden.org/plants/brow...

Well, I've taken 2 cuttings in order to propagate the plant by it's own, in 2 separate pots.
Probably it will take over the saxifraga and probably eventually I will have to completely remove it.

I am not familiar with Phedimus, the plants partially crawl? They don't seem to be upright and as far as I can see it does not like to be hanging.

Milan, If you look at the different entries for Phedimus you will see the different names they have been known under.
It can get really confusing with all the name changes that have taken place over the years.

I'll check back in when I get home from work and we can discuss the topic further. Very interesting plants.