Iceberg rose.

Perfectly white and looking so healthy !

Thank you very much. Yes, it is quite healthy rose. Tho is photo from the last summer. This year I had to rejuvenate the bush.

Stunning Katarina

Thank you, Thrupenny (what is your real name, please?)

Its Dawn Katarina ☺

Thrupenny@ I am sorry, you are not right. Majority of roses in my garden are from the Kordes breeder.
This is Iceberg, also called Schneewitchen. https://www.helpmefind.com/rose/l.php?l=2.3360