'Hama-nashi' rose Description
Photo courtesy of JJS
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Mauve or mauve blend Species.Exhibition name: R. rugosa
Purple or red. Or white. Strong fragrance. 5 petals. Average diameter 3". Large, single (4-8 petals) bloom form. Occasional repeat later in the season.
Armed with thorns / prickles, sends out runners, suckers on its own roots. Wrinkled (rugose) foliage.
Height of 3' to 8' (90 to 245 cm). Width of up to 6' (up to 185 cm).
USDA zone 2b through 9b. Produces decorative hips. shade tolerant. Disease susceptibility: very disease resistant.
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Rosa rugosa was first described by Thunberg in 1784 and introduced to Europe 50 years later, also by Thunberg. Prefers sandy or gravelly soils with average pH, although soils range in pH from 4.7 to 8.5. Salt and drought tolerant. Rosa rugosa actually performs best with periodic burning of the top growth in fall.
Native to Hokkaido and Honshu, Korea, NE China and Kamchatka, and the Russian Far East, where it's native habitat is sand dune and shores near the coast the low elevations.
Rosa rugosa is an invasive species in northern, central and western Europe and in parts of North America - New England, in Canada from Ontario to Newfoundland, and in Washington.