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'Rosa foetida 'Persian Yellow'' rose Description
'R. foetida persiana' rose photo
Photo courtesy of jedmar
Availability:
Commercially available
HMF Ratings:
157 favorite votes.  
Average rating: GOOD-.  
ARS:
Medium yellow Species.
Exhibition name: R. foetida persiana
Origin:
Bred by Unknown (before 1837).
Discovered by Sir Henry Willock (United Kingdom, 1837).
Introduced in Australia by John Baptist in 1861 as 'Persian Yellow'.
Class:
Hybrid Foetida, Species / Wild.  
Bloom:
Golden-yellow.  Occasional carmine-red streaks.  Unpleasant fragrance.  40 petals.  Average diameter 2.5".  Small, semi-double to double, globular bloom form.  Once-blooming spring or summer.  
Habit:
Armed with thorns / prickles, spreading.  Small, semi-glossy, fragrant foliage.  7 leaflets.  

Height: 4'11" to 6'7" (150 to 200cm).  Width: 4' to 5' (120 to 150cm).
Growing:
USDA zone 3b and warmer.  Vigorous.  Disease susceptibility: susceptible to blackspot .  Do not prune.  Resist the urge to prune this rose too heavily -- it doesn't like it!.  
Patents:
Patent status unknown (to HelpMeFind).
Ploidy:
References vary
Notes:
According to Dr. David Zlesak, the rose sold in North America as Persian Yellow is triploid, not tetraploid, suggesting a hybrid origin.

The Swedish Rose Society recommends Persian Yellow for northern Sweden.
For clarification of Dates, see References.
Recent DNA studies have shown that 'Persiana' is genetically identical to Rosa foetida, therefore a double-bloomed sport of the latter.
Plants with red petals were apparently discovered in 1994 at Gulmit, Gilgit Baltistan, Pakistan.- See References

 
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