Skinners Rambler, the parent variety, was generously donated for this 

 work by Dr. Frank L. Skinner, plant breeder and nurseryman, of Dropmore, 

 Manitoba, Canada. It is a vigorous seedling of Rosa maximoivizciana Regel 

 having five pink petals, flowers in clusters in June on the preceeding years' 

 canes, and sets viable seed with a number of unrelated pollen parents. It 

 has 14 chromosomes and is therefore a diploid rose. 



Grafton Pillar 



Bright red, double flowers in large clusters produced continuously from 

 June until severe frost characterize this rose. Distributed for testing as N. H. 

 4^551, it is a second generation seedling of Skinners Rambler x Gruss an 

 Aachen, (see chart). The flowers have 30 petals and are in terminal clusters 

 on canes two to eight feet long which places it in the classification of a 

 pillar rose needing the support of a fence or post but not growing as long 

 canes as a rambler rose does. The canes are hardy at -20° F but the 

 leaves have a mild susceptability to both mildew and blackspot diseases. 

 Spraying with a good fungicide is recommended as a regular part of the 

 care of this variety. Leafy stem cuttings taken in July root and grow very 

 easily. 



Gruss an Aachen, the first floribunda rose, is a dwarf, everblooming rose 

 whose canes are not hardy. It is a triploid rose having 21 chromosomes as 

 verified in this project, yet it produced the viable pollen used on the 14 

 chromosome. Skinners Rambler to produce a 14 chromosome seedling desig- 

 nated as SR3GAA. From this, 78 plants were grown in the F2 generation. 

 One of these had double flowers (30 petals I and two were everblooming. 



Grafton Pillar rose is double flowered, everblooming;. and red. 



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