Arends was a well known breeder of perennials in his time and he owned a
nursery in Wuppertal which still exists today. Actually breeding Irises
was not his priority. He bred only three, had them registered and marketed
he is mentioned here amongst other Iris breeders, as 2 of these 3 Irises
are among the most famous historical Irises, i.e. ‚Kupferhammer’ and
I don’t have any further information on his 3. variety, named ‚Kanaria’
(Iris germanica aurea x Mrs. Neubronner).