Website/Catalog  (2018)  Includes photo(s).
 
Translation:
“Morning Blush” (Rolf Sievers 1974) Flower color white with yellowish reflections on the inside, with reddish-pink-purple edge, lightening to white with lilac-pink edge. double flowers, quartered, very fragrant, plant very hardy, very healthy, glossy foliage, 1x plentiful, arching up to 4-5 m high. (Small Maiden's Blush x Hamburger Phoenix)

Website/Catalog  (21 Jun 2012)  Includes photo(s).
 
Morning Blush, one of the hardy Sievers cultivars

Book  (2007)  Page(s) 347.  
 
'SIEmorn', A, ly, 1988, (Morning Blush, Sievers, Rolf, 1974 ... short descriptiona

Website/Catalog  (24 Oct 1998)  Page(s) 6.  
 
Morning Blush™ (SIEmorn) Alba. 1988. Description... hundreds of exquisite, semi-double blooms of purest white, edged strawberry-red...

Book  (1997)  Page(s) 188.  
 
Morning Blush (SIEmorn) Description...