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The Montreal Botanical Garden recommends this rose as resistant to blackspot, powdery mildew, and rust:
http://www2.ville.montreal.qc.ca/jardin/en/info_verte/roses/cultivars.htm
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Initial post
16 NOV 09 by
Anne M
NW Ont, Canada, USDA Z2, I have had Quadra for over 6 years now. For the last four years, this rose has had no care whatsoever, and has had to compete with tansy and other weeds. This past summer she still put out 4 & 5ft canes and bloomed consistently. One tough and beautiful rose.
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Initial post
25 FEB 04 by
Unregistered Guest
Why is the rose "Quadra" described as medium pink when it is a very deep red?
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The soil and the climate have an effect on the colour of the rose, especially the soil if it is acid. Rose catalogues really stretch the truth when it comes to describing colours.
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#2 of 6 posted
25 FEB 04 by
Unregistered Guest
Medium pink is its "official designation" according to the American Rose Society, which is the internationally recognized authority on roses. For some reason their descriptions do not exactly match up with what most people would consider to be a medium pink. One possible explanation is that the rose doesen't hold its colour well and fades very quickly to a medium pink.
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#3 of 6 posted
17 MAY 07 by
Cliff
It appears that the ARS has changed the official color classification to dark red. Excellent question on your part!
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Just an additional note. Quadra should be classified as a climber, not a shrub. Pickering and Cornhill list it as a climber. I own it and lots of people are going on Dave's Garden and asking if it can be grown as a shrub. The growth is so rapid that it would be unwieldy. Can you correct?
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#5 of 6 posted
22 JUL 08 by
Cliff
You're correct that Quadra grows like a climber, and I've added that under "habit." However, the official classification is Hybrid Kordesii, which falls within the "classic shrub" group. Many of the Kordesii have climbing growth habit. One of the best known is Dortmund, which you'll often see sold as a climber.
Cliff
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I never paid any attention to the distinction! Thank you for clarifying it and - WOW - responding so quickly.
Donna Mack
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