'RSM WP' rose Description
Photo courtesy of DonaldQuRoses
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Shrub. Parkland Series Collection.
Deep pink, red shading. Mild, tea fragrance. 22 petals. Medium, double (17-25 petals), cupped bloom form. Occasional repeat later in the season.
Bushy, upright. Matte, medium green foliage.
Height of 30" (75 cm).
USDA zone 2b and warmer. Very hardy. heat tolerant. Disease susceptibility: susceptible to blackspot .
United States - Patent No: PP 9,122 on 2 May 1995 VIEW USPTO PATENT
Application No: 08/170,810 on 21 Dec 1993
The new variety is a complex hybrid that was developed from the Rosa arkansana hybrids Morden Cardinette and Cuthbert Grant, and Prairie Princess.
In September 1998, the Montreal Botanical Garden (Le Jardin Botanique de Montreal) carried out a survey of its roses' resistance to black spot, powdery mildew and rust. This is one of the outstanding varieties which showed a 0% to 5% infection rate. The data were taken on well-established roses.
Henry Marshall was the breeder at Morden through the 1981 breeding season. He retired 15 Sept 1981.