Book  (2001)  Page(s) 200.  Includes photo(s).
 
The 'Perle von Weissenstein', created by Daniel August Schwarzkopf in the Weissenstein nursery c. 1773, is considered to be the oldest German garden rose still in existence that has a non-botanical name. Judging by its habit, it is probably a cross R. damascena x R. gallica.

In French catalogues it is called 'Perle de Vaseingstein'. Thory...calls it...R. provins 'Perle de Veisseuslein' and confuses it with the 'Pourprée de Weissenstein'. ..

The 'Perle von Weissenstein' is a large, healthy shrub that grows extremely well, with a great number of large buds. These very full, ball-shaped buds, however, have a tendency to stick together in damp weather and then form ugly lumps, affected by botrytis. In a favourable climate or in the greenhouse, there develop beautiful, strongly scented, large flowers, dark red in the centre and paler at the edge.

This rose has now stood for over 200 years in the Wilhelmshöhe park.

Book  (Jul 1998)  Page(s) 103-104.  
 
Perle de Weissenstein (Germany), 1773.
Synonym: La négresse (according to Thory, 1817).
Less upright than the gallica type; attains 2m; numerous hooked thorns, few bristles, light green foliage, elliptical leaflets, in clusters of 3 to 12 flowers, medium, double, cupped, long sepals, purple pink, reverse pink, medium fragrance.
Description. This variety is one of the old cultivars of Daniel August Schwarzkopf, chief gardener of the castle of Weissenstein (today Wilhelmshöhe), near Kassel, in Germany. ... We retain "Perle de Weissenstein" here for its historic interest. However, neither its habit, nor the form of its blooms, nor its tendency to rebloom, really incites to place it among the Gallicas: probably it is a hybrid damask.

Book  (1996)  Page(s) 73.  
 
'Perle von Weissenstein' (Schwarzkopf ca. 1773) Hybrid gallica. Cultivated here in the park 200 years ago, rediscovered in 1978. Pictured in Pinhas, earlier very widely distributed and in many compilations. Pink with a purple centre, very double, the blooms ball in rain. Strong, high shrub. Own root.

Book  (1996)  Page(s) 12-13.  
 
'Perle von Weissenstein' - oldest German cultivar....Unfortunately we have not been able to determine the exact date of this oldest German cultivar. We assume the period between 1773 and 1785... The rose is found only after 1808 in various German and French registers resp. sales catalogues. French register transmogrify the name to 'Perle de Vaseingstein'. In his Rosenlexikon Jäger has referred to it under this name. In the famous work by Redouté and Thory it is called 'R. provins perle de Veisseuslein'.

Book  (1936)  Page(s) 724.  
 
Vaseingtein [Weissenstein], Perle de (Provins) ? ?; brown, center purple

Book  (1906)  Page(s) 133.  
 
8.620. Perle de Vaseingtein ou Veissenstein, Provins, brun clair pourpre

Magazine  (Dec 1902)  Page(s) 183.  
 
Almanach des Roses dédié aux dames
Par T. Guerrapain, propriétaire, membre du Collège èlectoral du département de l'Aube¹.
Avant de passer aux espèces assez nombreuses des Agathes, je vais en décrire quelques variétés qui se rapprochent des Cent-Feuilles par la forme et la couleur, telles sont les Perles dont il existe deux variétés.
Perle de Vaseingten.
La première, nommée Perle de Vaseingtein.
Son bois est parsemé de très petits aiguillons bruns, droits.
Ses feuilles sont allongées, d'un vert foncé, finement dentelées, portées sur un pétiole vert.
Le calice est rond, recouvert.
La fleur est de moyenne grandeur, bien faite, les pétales en sont frisés, d'un brun clair veiné d'un brun plus foncé.

(1) A Troyes chez Gobelet, imprimeur-libraire près l'Hôtel de Ville, n°205, 1811.

Book  (1899)  Page(s) 93.  
 
La Négresse, Provins, Descemet, pourpre foncé ombré brun

Book  (1899)  Page(s) 142.  
 
Perle de Vaseingtein, Provins, brun claire veiné, ou Veissenslein (Redouté) ou Veisenstein (Vibert). Dans l'Almanach de Guerrepain

Book  (1854)  Page(s) 51.  
 
La Négresse Gallica... a very superb double crimson...