Hi Zuzu
Funny I have always referred to this plant as Silene. Somebody told me it was not a Silene but Viscaria oculata.
I did have a Silene blue angel, but was given seeds from a friend of the above Silene, which is prettier than blue angel. Where did you find blue pearl? Googled but could not find it.
I have this plant growing in pots and get a lot of questions about this plant.
Thanks for your help.