Book  (Dec 1998)  Page(s) 432.  Includes photo(s).
 
Nightingale (HERgale) Large-flowered/Hybrid Tea. Herholdt (South Africa) 1970... These flowers are an attractive rich rose pink which, on ageing, is more of a blended lighter color... 'Nightingale' was rediscovered in the 1980s by American exhibitors...

Website/Catalog  (Nov 1997)  Page(s) 8.  
 
Nightingale Hybrid Tea. Herholdt 1970... deep iridescent pink with light pink centre & reddish pink on tips; high-centred; excellent show rose.

Book  (Mar 1995)  Page(s) 19.  Includes photo(s).
 
Nightingale (HERgale) Hybrid Tea. Herholdt (South Africa) 1970... big, silvery cerise blooms... rose exhibitors have discovered that 'Nightingale' stops developing after it is removed from the bush...

Book  (Apr 1993)  Page(s) 412.  
 
Nightingale Hybrid Tea, rich rose-red, blended lighter, 1970, (HERgale); 'Rina Herholdt' x 'Tiffany'; Herholdt, J.A. Description.