Newsletter  (Feb 2020)  Page(s) 21-22.  Includes photo(s).
 
[From "The Flowering of Sir Cedric Morris", by Darrell g.h. Schramm, pp. 21-23]
The rose ‘Sir Cedric Morris’ may seem to be a modern rose, especially since it was introduced by Peter Beales in 1979—though found a bit earlier —but its parentage, as far as we know it, goes back at least 100 years. This rambler was discovered by artist and plantsman Sir Cedric Morris among a batch of seedlings between R. glauca and R. mulliganii. It is assumed these two wild roses are the parents....
With the exception of leaflet serration and a slight grey cast to the Self-Portrait foliage, not much of R. glauca is evident in ‘Sir Cedric Morris’. Like R. mulliganii, however, its flowers are white, grow in clusters, the five petals of each rose not quite touching each other (like those of ‘Wedding Day’) and of a papery texture; also like the latter, it bears prickles and grows vigorously and rampantly, from twenty to thirty feet high and twenty feet wide. Depending on climate and time of day, it emits a mild to strong fragrance. The flowers bloom once a year in June. It is probably one of the swiftest of ramblers growing. It will reach more than thirty feet.

Newsletter  (Dec 2015)  Page(s) 4.  
 
[From "My Adventure in Ramblers", by Dominique Massad, pp. 2-6]
.....a hybrid of Rosa soulieana and Rosa rubrifolia which was obtained by Morris and released by Peter Beales in 1979 by the name of ‘Sir Cedric Morris’. A very vigorous rose that, although it is not remontant, has simple blooms with little scent but 20 to 40 blooms are held on each panicule. The leaves are a slightly glaucous grey.

Book  (2006)  Page(s) 280.  
 
'Sir Cedric Morris'. R. (LCL). No rebloom. Outstanding fragrance. Habit 5 [Massive rambler]. Morris; Beales, 1980. [Provenance: Hortico]. An unusual rose in the mould of other giant climbers like 'La Mortola', this hybrid between R glauca and R. mulliganii has small, scented white flowers whose five petals stand slightly apart, giving an extra delicacy. These come in large clusters and are set against smooth foliage which is pewter toned, a sort of olive drab dusted gray.

Website/Catalog  (Oct 1999)  Page(s) 47.  Includes photo(s).
 
Sir Cedric Morris (Rambler) Discovered in a batch of Rosa rubrifolia seedlings by the late Sir Cedric Morris of Hadleigh, Suffolk. Each flower is white and has a thin, papery texture, produced in huge clusters in mid-to-late June, they are fragrant and followed by small, rounded orange hips. Foliage is long and finely toothed and the stems well armed with thorns. Both the leaves and young shoots are purple in colour with an overlay of grey. Very vigorous. 1979.

Book  (Nov 1994)  Page(s) 233-234.  
 
Sir Cedric Morris
A seedling which occurred in Cedric's garden...in Suffolk, growing near to Rosa glauca and R. mulliganii, though there is nothing to prove that these were the parents. It has much of the vigour and plenitude of flower of the second species, and the young foliage is distinctly purplish. 30 ft.

Book  (1993)  Page(s) 121.  Includes photo(s).
 
Raised by Sir Cedric Morris and launched by Beales in Britain 1979. A Rosa glauca seedling. Description.

Newsletter  (1991)  Page(s) 81. Vol 12, No. 1.  
 
Peter Beales:  The rose we are looking at now is Sir Cedric Morris, a monster of a rose.  The gentleman with it is Sir Cedric - we named the rose after him.  What is interesting about this is that the gentleman was blind and he had grown this rose for a long time as a chance seedling.   He took me to see it and it was the biggest rose I had ever seen in my life and we ultimately introduced it.  Its big advantage is its grey foliage and its lovely scent.  The grey foliage is useful from the point of view of floral arranging.

Website/Catalog  (1982)  Page(s) 37.  
 
Sir Cedric Morris this rose will climb to considerable heights. It is probably a chance cross between Rosa rubrifolia and Rosa longicuspis. It was discovered in a batch of Rosa rubrifolia by the late Sir Cedric Morris of Benton End, Hadleigh, Suffolk, where the spectacular specimen in the photograph can be seen. Each flower, composed of five petals, is off-white in colour and has a thin papery texture. The flowers are very generously produced in huge clusters in mid-to-late June. The Rose has a slight fragrance. The flowers are followed later in the summer by small, rounded, orange hips. The foliage is long and finely toothed and the stems well armed with thorns. Both the leaves and young shoots are purple in colour with an overlay of grey. 1979. T. Shade tolerant. (S) 30 x 20’.