Book  (Feb 1993)  Page(s) 81.  Includes photo(s).
 
Boule de Neige Bourbon. Parentage: 'Blanche Lafitte' x 'Sappho'. France 1867. Description and cultivation... very double, medium-sized flowers in clusters of purest white...

Book  (1993)  Page(s) 85, 87.  Includes photo(s).
 
Bourbon. Description. Flowers: white, the petals gradually turning back on themselves almost forming a ball. Strong fragrance. 'Blanche Lafitte' x 'Sappho'. Lacharme (France) 1867.

Book  (1993)  Page(s) 86.  Includes photo(s).
 
A Bourbon. Flowers reflex in good weather to form a ball. Lacharme (France) 1867. Repeat flowering. Height: 10 ft. Very good scent.

Book  (Jun 1992)  Page(s) 95.  
 
Boule de Neige (Translation: 'Snowball') Bourbon. Lacharme 1867. 'Mlle Blanche Laffitte' (Bourbon) x 'Sapho' (Damask Perpetual)... Pure white, centre delicately shaded with cream... Flowers white, tinted with greenish-yellow... the blossom tends to nod...

Book  (1992)  Page(s) 18.  
 
Bourbon shrub; white, touched pink; blooms of medium size, double, open cupped; fairly remontant; growth rather open, best on support, 5 x 4 ft (1.5 x 1.2 m); dark leaves; good scent. 'Blanche Lafitte' x 'Sappho'. Lacharme 1867. OGR

Book  (1991)  Page(s) 21.  
 
....the camellia-like 'Boule de Neige'.

Book  (1988)  Page(s) 70.  Includes photo(s).

Website/Catalog  (1985)  Page(s) 13.  
 
Boule de Neige.....5 x 4’

Article (website)  (1982)  Page(s) 11.  
 
Boule de Neige (Bourbon). A fine shrub with glossy foliage bearing full flowers of creamy white with a strong fragrance.  Summer and Autumn flowering.  1867.  H. (R) 6 x 4’. 

Book  (1980)  Page(s) 50.  
 
Leonard Hollis. Symposium on the Twelve Best Bourbon and Hybrid Perpetual Roses.
'Boule de Neige'.....