Durham Pillar 



Distributed for testing as N. H. 

 4^536, this is an open pollinated seed- 

 ling of Chevy Chase rambler. The 

 unique feature of Durham Pillar is 

 its apparent freedom from both black- 

 spot and mildew diseases. The leaves 

 are a glossy, olive green and are 

 thick and relatively rigid. In the 

 greenhouse the plant is an evergreen 

 and continues growth all winter at 

 70°F but will not flower under glass. 

 In the garden it blooms continuouslv 

 from June to frost in large clusters 

 terminal to the pillar-length canes. 

 The flowers have five petals and are 

 red. The canes winter-kill to the soil 

 line at temperatures below 17°F but 

 growth and flowering are satisfactory 

 from the short basal canes as from 

 a fforibunda rose when it has been 

 protected by mounding with soil. 

 This variety seems to have some 

 drought resistance and seems to grow 

 more vigorously in warm seasons. 



Durham Pillar has 14 somatic chromosomes. It is a second generation 

 seedling of Rosa souUeana Crepin by a dwarf red China Rose hybrid which 

 had the appearance of a Polyantha variety. 



It is suggested that Durham Pillar be used in a sunny exposure trained 

 on a low fence, against a stone wall or on a trellis or post where a total 

 plant height of four to eight feet is desirable. No fungicide is needed and 

 it is hoped that rose breeders will make use of this cultivar to produce a 

 race of disease free garden roses. 



Durham Pillar rose, a hardy, ever- 

 blooniing, disease-resistant variety. 



Other Seedlings 



The following numbered seedlings are included in this record of rambler 

 rose breeding because they have been distributed for testing or have been 

 referred to in one or more publications in various ways. It is possible that 

 some of these may be useful for further breeding work. 



N. H. 4^5211 (Skinners Rambler self-pollinated). A sister seedling of 

 White Mountains, this one has great clusters of double pinkish magenta 

 flowers, and makes an extremely vigorous and rampant growth. The stout, 

 thorny and bristly canes bear Rosa niultiflora type leaves not fully as shiny 

 as those of 'White Mountains'. Propagation of N. H. #5211 from cuttings 

 is easy. It is also a good seed parent. 



N. H. #541 (an open-pollinated seedling of N. H. #.5211). Having 

 double white flowers like White Mountains, this one has dark, shiny green 

 Rosa multiflora type leaves that are free of blackspot and mildew diseases. 



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