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7 favorite votes.  

Light pink Polyantha.
Registration name: Radium (polyantha, Houry, 1914)
Exhibition name: Radium

Bred by Léon Houry (France, before 1914).
Introduced in France by Grandes Roseraies du Val de la Loire in 1915 as 'Radium'.

Polyantha.  

Pink, yellow center, silver(y) highlights.  Medium, double (17-25 petals), in large clusters bloom form.  Continuous (perpetual) bloom throughout the season.  

USDA zone 6b and warmer.  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.  

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Radium was discovered by Pierre and Marie Curie 21 December 1898. Marie was born Maria Sklodowska in Warsaw, Poland, on 7 November 1867. She died in France on 4 July 1934.