Website/Catalog  (2008)  Page(s) 6.  Includes photo(s).

Book  (2002)  Page(s) 18.  
 
Rated 6.3

Book  (2000)  Page(s) 66.  Includes photo(s).
 
‘Adolf Horstmann’/’Adolph Horstmann’ = Hybride de Thé, tons jaunes, remontant. See ref Botanica's Roses. Kordes, Allemagne, 1971. ‘Color Wonder’ x ‘Dr A.J.Verhage’.

Book  (Dec 1998)  Page(s) 66.  Includes photo(s).
 
Adolf Horstmann ('Adolph Horstmann') Large-flowered/Hybrid Tea. Kordes 1971. Description... rich yellow-orange, medium-sized double flowers... named after the pirncipal of a well-known nursery in northern Germany...

Book  (Sep 1993)  Page(s) 37.  Includes photo(s).
 
Adolph Horstmann Large-flowered. Reimer Kordes 1971. Parentage: 'Königin der Rosen' x 'Dr. A.J. Verhage'. Description... deep amber-yellow, with some red and orange flushes in warm weather... Kordes named it for a friend...

Book  (Apr 1993)  Page(s) 3.  
 
Hybrid Tea, yellow blend, 1971, ('Adolph Horstmann'); 'Colour Wonder' x 'Dr. A.J. Verhage'; Kordes, R.; Kordes. Flowers yellow-orange, double, classic Hybrid Tea form, large (5 in.); slightly fragrant; foliage glossy; vigorous, upright growth.

Book  (Feb 1993)  Page(s) 169.  Includes photo(s).
 
Adolf Horstmann Large-flowered hybrid tea. Germany 1971. Parentage: 'Colour Wonder' x 'Dr. A.J. Verhage'. Description and cultivation... The large flowers are yellow tinged with orange-pink and slightly fragrant and are at their most attractive when nearly open.

Book  (May 1992)  Page(s) 374.  
 
Adolf Horstmann Description and cultivation... Deep yellow flowers flushed orange-pink...

Book  (1992)  Page(s) 11.  
 
Large-flowered bush; orange yellow with pink; blooms very large, double; growth upright, 3 x 2 ft. (100 x 65 cm.); deep green glossy foliage; light scent. Trial Ground Certificate 1972, Certificate of Merit, Belfast. 'Colour Wonder' x 'Dr. A.J. Verhage', Kordes 1971.

Book  (1988)  Page(s) 130, 131.  Includes photo(s).
 
Page 130: [Photo]
Page 131: Adolf Horstmann Kordes 1971. Description...