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'Harison's Yellow' rose Description
'Harison's Yellow' rose photo
Photo courtesy of jeffcat
Availability:
Commercially available
HMF Ratings:
96 favorite votes.  
Average rating: EXCELLENT.  
ARS:
Deep yellow Hybrid Foetida.
Registration name: Harison's Yellow
Exhibition name: Harison's Yellow
Origin:
Bred by George Folliott Harison (United States, circa 1824).
Introduced in United States by Mr. Thomas Hogg, Nurseryman in 1825 as 'Harison's Yellow'.
Class:
Hybrid Foetida, Hybrid Spinosissima, Shrub.  
Bloom:
Deep yellow.  Mild to strong fragrance.  up to 25 petals.  Average diameter 2".  Medium, semi-double to double, borne mostly solitary, globular bloom form.  Once-blooming spring or summer.  
Habit:
Bushy, suckers on its own roots, well-branched.  Small foliage.  7 to 9 leaflets.  
Height of 3' to 8' (90 to 245 cm).  
Growing:
USDA zone 3b through 9b.  Very hardy.  drought resistant.  shade tolerant.  Needs little care; relatively disease-free and quite hardy.  Prune dead wood.  
Ploidy:
Tetraploid
Notes:
Parentage uncertain...References describing Persian Yellow as a parent ignore the fact that Persian Yellow (introduced only in 1838) was not in commerce at the time that Harisonii was introduced in the 1820's. Writers contemporary to Harison referred to one of the parents as the yellow briar, which is not the same as Persian Yellow. For many years Persian Yellow was reported as a parent of Harison's Yellow.

The Swedish Rose Society recommends Harisonii for northern Sweden.

Although Harison's Yellow has been considered tetraploid for many years, many plants labeled as Harison's Yellow are triploid. At least 2 genotypes are in commerce as Harison's Yellow.
 
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