Book  (Dec 2000)  Page(s) 127.  
 
J.B. Clark
Hybrid Perpetual
Hugh Dickson 1905

Book  (Apr 1993)  Page(s) 267.  
 
Hybrid Perpetual (OGR), dark red, 1905, 'Lord Bacon' x 'Gruss an Teplitz'; Dickson, H. Flowers deep scarlet, shaded blackish crimson, double (25 petals), high-centered, large; fragrant; very prickly; vigorous (8-10 ft.), bushy, almost climbing growth.

Book  (1993)  Page(s) 97.  Includes photo(s).
 
[Photographed at the Roseraie de l'Haÿ, Paris] Hybrid Perpetual. Dickson (Northern Ireland) 1905. ('Lord Bacon' x 'Gruss an Teplitz')

Book  (Jun 1992)  Page(s) 135.  
 
J.B. Clark Hybrid Perpetual. H. Dickson, 1905. Parentage: 'Lord Bacon' x 'Gruss an Teplitz'. [The author cites information from different sources.]
Dark scarlet shaded blackish crimson... Deep scarlet, shaded plum... In full sun the color bleaches... Its color is much better in partial shade... thorny...

Website/Catalog  (1938)  Page(s) 23.  
 
Bush Roses
J. B. Clark (Hybrid Tea)... Deep scarlet shaded blackish crimson; large, very vigorous. Fairly highly perfumed. Introduced 1905.

Book  (1936)  
 
p37.  H. R. Darlington, UK. The Search For the Crimson Rose. 
Some dozen or so of the Roses mentioned in the list have now disappeared...  a few, e.g., W. C. Clark and J. B. Clark, because they grew too strongly and occupied too much space for the return they gave.  My last plant of J. B. Clark will disappear this autumn. I well remember the wonderful box of twelve exhibition blooms of J. B. Clark displayed at the last of the N.R.S. shows held at the Temple in 1904, when every flower was covered with a lovely plum-coloured bloom that seemed most attractive. I do not remember seeing this "bloom" on any flower since, but the plant was a mighty grower, making rods of 10 feet long in a season, from which, if pegged down, some flowers of exhibition size and form could be obtained in the following year, with a little trouble, though the proportion of first-rate flowers was never great, as I grew it.

p38.  ibid.. 
My list [of the roses I grow] contains only two H.Ps...Hugh Dickson is classed as a H.P., though one of its parents was Gruss an Teplitz, a Rose classed as H.T. and with China blood (Fellenberg) in its ancestry, while J. B. Clark, with the same parentage, was called H.T.

Book  (1936)  Page(s) 158.  
 
Clark, J. B. (HT) H. Dickson 1906; Lord Beacon X Gr. an Teplitz; velvety glossy dark scarlet, shaded blackish crimson, very large, double, cup form, high-centered, solitary or up to 3, fragrance 5/10, floriferous, floriferous, long strong stems, growth 7/10, upright, bushy. Sangerhausen

Website/Catalog  (1936)  Page(s) 7.  
 
J.-B. Clark Hybride de thé. Rouge écarlate foncé intense. [Hybrid Tea. Intense dark scarlet-red.]

Website/Catalog  (1929)  Page(s) 39.  
 
Hybrid Perpetual Roses
J. B. Clark. (H. Dickson, 1905.) Very large, light red blooms, shaded blackish maroon, globular, very double, slightly fragrant. Growth enormous (6 to 12 feet); average foliage; early blooms profuse but scarce later.
Usually disappointing if weather is hot at blooming-time, but of splendid beauty when conditions are right. Scarcely ever blooms in fall, If left unpruned it makes a tremendous growth with decidedly inferior flowers. Pruned back to 18 inches every spring and disbudded, it is literally magnificent.

Website/Catalog  (1928)  Page(s) 5.  
 
Hybrid Perpetuals and other hardy varieties.
J. B. Clark. Hybrid Perpetual. (H. Dickson, 1905.) Lord Bacon X Gruss an Teplitz. Intense, deep scarlet, heavily shaded blackish crimson; large, full, with immense petals