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'Silver Anniversary ™' rose Description
'Karen Blixen ™' rose photo
Photo courtesy of Bruce Martin
Availability:
Commercially available
HMF Ratings:
67 favorite votes.  
Average rating: EXCELLENT-.  
ARS:
White, near white or white blend Hybrid Tea.
Registration name: POUlari
Exhibition name: Karen Blixen ™
Origin:
Bred by L. Pernille Olesen (Denmark, before 1990). Bred by Mogens Nyegaard Olesen (Denmark, before 1990).
Introduced in Denmark by Poulsen Roser A/S in 1996 as 'Karen Blixen'.
Class:
Hybrid Tea.  
Bloom:
White or white blend.  Mild, fruity fragrance.  41 to 70 petals.  Average diameter 5.5".  Large, very double bloom form.  Blooms in flushes throughout the season.  Large, pointed buds.  
Habit:
Bushy.  Large, glossy foliage.  3 to 5 leaflets.  
Height of 35" to 5' (90 to 150 cm).  Width of 2' to 4' (60 to 120 cm).
Growing:
USDA zone 7b through 10b.  Disease susceptibility: very disease resistant.  Spring Pruning: Remove old canes and dead or diseased wood and cut back canes that cross. In warmer climates, cut back the remaining canes by about one-third. In colder areas, you'll probably find you'll have to prune a little more than that.  Requires spring freeze protection (see glossary - Spring freeze protection) .  Can be grown in the ground or in a container (container requires winter protection).  
Patents:
Australia - Patent  on  13 Dec 1996
Application No: 96/278   VIEW PBR PATENT
 
Australia - Application No: 1996/278  on  1996   VIEW PBR PATENT
 
European Union - Patent No: 314  on  1 Aug 1996
Application No: 19950444  on  2 Aug 1995
Holder: Poulsen Roser ApS. Denomination approved: POULARI.
First commercialisation in EU: 27/01/1993
Expiry of protection on February 1, 2018.
 
United States - Patent No: PP 9,274  on  5 Sep 1995   VIEW USPTO PATENT
Application No: 08/310,713  on  21 Sep 1995
Notes:
Arena Rose Co.'s Catalog says this a rose that has it all -- pure white color, superb form and a delightful fragrance. This rose commemorates the famous author of Out of Africa.


Fryer's Roses says Silver Anniversary is a new, scented, pure white Hybrid Tea...


Gwen Powell grows 'Karen Blixen' in her Los Angeles area garden and says it has very long stems, is disease resistant, has perfectly formed buds and flowers, and lasts very well as a cut flower.


Lisbet Matz grows 'Karen Blixen' in her organic garden in Copenhagen and says this rose grows better there than a lot of once-blooming varieties.


According to the Canadian Plant Breeders' Rights Office, an application (No. 96-723) for POULari was filed by Poulsen Roser ApS.

US PP 9,274 is for Poulart (not Poulari), but describes a white rose.