The photo certainly looks the same as “Kew Cemetery Pink”. However, the 1936 and 1976 references for ‘Mme. Rene Collette’ mention red or carmine edges which I have never noted on my plants.
There are not too many red or carmine edges on Zwerggarten’s ‘Mme. Rene Collette’ which came from Sangerhausen. Is there any doubt about the veracity of the Sangerhausen ‘Mme. Rene Collette’?
Margaret - I can’t help noting that Zwerggarten has also added photos of ‘Viscountess Folkestone’ which is another possibility for “Kew Cemetery Pink”.
Zwerggarten – thank you so much for your photos. They are valuable.