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'Rosa californica f. plena Rehder' rose Description
'R. californica plena' rose photo
Photo courtesy of Helena Verghese Borg
Availability:
Commercially available
HMF Ratings:
59 favorite votes.  
ARS:
Deep pink Species.
Exhibition name: R. californica plena
Origin:
Introduced by Unknown in 1894 as 'Rosa californica 'Plena''.
Class:
Species / Wild.  
Bloom:
Pink.  Strong fragrance.  Average diameter 1.5".  Small, semi-double (9-16 petals) bloom form.  Once-blooming spring or summer.  
Habit:
Tall, arching, armed with thorns / prickles, climbing, suckers on its own roots, upright.  Matte foliage.  3 to 9 leaflets.  
Height of 6' 1" to 11½' (185 to 350 cm).  
Growing:
USDA zone 5a through 9b.  Vigorous.  
Ploidy:
Unknown
Notes:
See References for questions about this rose which is commonly dated to 1894, the date of Geschwind's 'Theano' and at least 16 years before Willmott published The Genus Rosa.. It is most probably identical to 'Theano', as there seems to be no trace of it in the wild. The rose pictured by Parsons in "The Genus Rosa" looks different however.

One of the Roses that "passed the test" in Longwood Garden's Ten-Year Rose Trials.
 
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