(11 May 1979)  
 
Personal correspondence - Percy Wright to Walter Schowalter
I am more and more pleased with my Augusta rose. It has a fully double, almost red flower and blooms its head off all summer long, being in as full bloom when the first heavy frosts hit in September as it is in June, and immune to the curculio and blackspot and mildew and rust, and completely hardy, a really wonderful combination of good features. Its only bad feature is weak necks, with the flowers mostly nodding. I can't explain how a rose bush so succulent when fall frosts hit can be so hardy. I know it is an F2 hybrid of Laxa Retzius, but don't know the details of the parentage. Too bad, for I'd like to repeat the cross.

(2 Apr 2015)  
 
Personal correspondence: Robert Erskine to Percy Wright, Percy Wright fonds:
The red flowered Rosa acicularis that you mentioned as doing so well this year might be my Aurora. I don't remember just when I sent you plants of it. My red one differs from Porter's in the petals. The Shellbrook's petals have a space between them and the flowers form a 5 point star when wide open while the Aurora's petals overlap and form a scalloped moon in form. Shellbrook has very long hips and Auroras hips are plumper. Both have bluish foliage but Aurora's leaves are nearer round in form. I have seedlings that are a cross of the two but they have not bloomed yet.

(6 Dec 2010)  
 
Plant Originations Made by Percy H. Wright (February, 1983) - Percy Wright

Bobolink rose. This is only a single, somewhat pale yellow rose, but with a surprising everblooming habit in spite of its descent (in the F3 or F4) from the Persian Yellow crosses with the ALTAI rose, and no other infusion of genes. Persian Yellow must have a recessive gene for everblooming that has come out at last because of the inbreeding I have allowed to occur in this strain of hybrids. I have great hopes for the BOBOLINK rose as a future parent, for it should allow me to originate new everblooming roses with out bringing in any genes from the tender- semi-tropical roses such as the Teas or Hybrid Teas. I am immensely impressed with the potential in my extraordinary BOBOLINK rose."

(28 Apr 2010)  
 
Percy Wright Autobiography - Chapter 151, page D

Among the seedling roses that bloomed for me on my rural nursery was an F3 or F4 descendant of crosses I made between my Hazeldean rose and Rosa altaica (which is a back-cross) and it has excited my imagination to no end. It is everblooming even through there are no genes in it of any HT or any other of the tender roses that originate in semi-tropical southern Asia. Apparently there are recessive genes for everblooming in spinosissima altaica, for a variety named Stanwell Perpetual was named and introduced away back in the previous century. There must be a recessive gene for everblooming in Persian Yellow too, for the cross that resulted in the rose Soleil d'Ore, the first of the Pernetiana roses, was ever-blooming, and since June blooming is dominant, this could not have happened unless Persian Yellow has a recessive gene for everblooming.
In any event, I was so struck with the potential in this everblooming spinossissima altaica that I gave it a name, Bobolink and noted that it is fertile enough to make heps with seeds in them. It is a single rose in a pale yellow that could be called cream. Next June I will put pollen of Persian Yellow on it, and that should allow me a chance to breed a variety of rose practically identical to Persian Yellow, but everblooming, and perhaps, if I am fortunate, also free of blackspot. Such a rose would be a real achievement. I wish I could have known last June that the Bobolink rose was everblooming, for if I had I could have made the cross with Persian Yellow then."

(1 Jul 1983)  
 
Personal Correspondence - Percy Wright to Walter Schowalter

However, I doubt if I'll make any rose pollinations this year, since I am now old enough that I may not see the result in bloom. However, I will sow open-pollinated seed of my double yellow roses, as well as seeds of my 'Bobolink' rose, that pure spinosissima altaica that blooms all summer long. It still seems to me something of a miracle that everblooming could exist in any rose that has no genes at all of any of the tropical species. I say this in spite of the fall bloom on our native Rosa suffulta if it is mowed to the ground in June. Bobolink rose is a very pale yellow that fades rapidly to white. If I could get a double yellow from it that is equally ever-blooming, I'd be happy indeed."

(18 Aug 1968)  
 
Personal correspondance Percy Wright to Walter Schowalter:
My Carlea rose is like Victory Year, but sufficiently better that Victory Year should now be ready for discard.

(11 Dec 2010)  
 
Percy Wright Autobiography, Volume IV, Page 1008

For example, the rose Harison's Yellow kills to the snowline at Parkside every winter, whereas here at Saskatoon it is abundantly hardy. Prof. J. T. Maney's Ames 6 (Multiflora x Blanda) behaves similarly, and so does Prof. N.E. Hansen's Alika. So does my Eureka rose. The latter is a seedling of Ames 6 with semidouble white flowers instead of single pale-pink ones, that I raised about 1945 while at Moose Range.

(13 Dec 1968)  
 
Personal correspondence Percy Wright to Walter Schowalter :
This one is a Scotch rose of complex ancestry: Altaica x [(Macounii x acicularis) x Harison's Yellow]. I call it Harison's Hardy, and it is a bicolor, but both the pink and the yellow are weak, making it nearly white.

(5 Jun 1977)  
 
Personal correspondence - Percy Wright to Walter Schowalter

I have several very new roses of which I am proud. One is a seedling with single yellow flowers to pollen of Hazeldean. It is double almost as double as Hazeldean and has normal pistils, not the aborted type that Hazeldean inherited from Persian Yellow. It blooms a week earlier than Hazeldean, which means more time before the curculio appears. I'll name it LOTHIAN. Another is a single yellow Altai type, the deepest yellow descendant of Hazeldean I have ever seen. I don't doubt that it's fertile too. It will mostly replace YELLOW ALTAI, which has hips and seeds, but the seeds refuse to germinate. I have named it LOMOND. I figure that Scotch roses should have Scottish names. Another new rose is a substitute for Austrian Copper a single that blends red & yellow in a very attractive way. It is (Gallica x laxa) x Hazeldean. It won't be fertile, but, unlike Austrian Copper, will be free of blackspot, and probably a bit hardier."

(2 Oct 1967)  
 
Personal correspondence - Percy Wright to Walter Schowalter:
I'll enclose some further rose seed for you to experiment with. It will be Bertha x Hazeldean. Bertha is a rugosa-blanda hybrid, F2, that leans to rugosa, but grows nine feet high. Hazeldean is my prize yellow rose, altaica x Persian Yellow. Thus the seeds will give you triploid roses. Stratify them at once.