Website/Catalog  (2013)  
 
‘Blanche de Riga’ (A, 1829)

Article (website)  (2001)  
 
The rose catalogue of 1834 includes 210 classes and varieties....The largest group is those of R. gallica....Like every man who loves his country, Gartvis did not forget it while living in Crimea......Hybrids of R. alba are Прекрасная Ливония (Belle de Livonia) and Белая Рига (Blanche de Riga).