Magazine  (1966)  Page(s) No. 164, p. 275.  
 
Clematis (hybrids)...
From France. Plants presented by Andra Girault, Horticulteur-Pepinieriste, Orleans (Loiret). Received Nov. 18, 1959.
...261357. 'Queen Alexandra'.

Website/Catalog  (1912)  Page(s) 78.  
 
Summer and Autumn Clematis.
In bloom from July to October.
These flower upon the wood of the current year's growth, and should therefore be pruned to five or six eyes.  
Queen Alexandra, beautiful pale lavender, with lilac purple base; very pretty and distinct...  2s. 0d.