'Rubra' rose Reviews & Comments
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Initial post
5 APR 16 by
Rob Byrnes
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This publication from the Montana State University Extension also indicates that R. rugosa rubra is hardy to zone 2. Could someone make the zone change? Thank you.
http://store.msuextension.org/publications/YardandGarden/MT199603AG.pdf
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REPLY
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Initial post
28 APR 15 by
Rob Byrnes
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The following online publication lists R. rugosa as hardy to zone 2.
http://public.wsu.edu/~lohr/wcl/shrubs/rosarug/rosarugosa.html
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REPLY
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