Most of the rose species that are available in Norway are designed for a warmer climate, and the selection of roses adapted to our cold climate in the north is rather limited. Finland have for several centuries been cultivating roses adapted to different climate zones. In the botanical garden at Bioforsk Svanhovd, we have planted 13 different varieties of rose imported from Oulu, Finland in summer 2009. Five of the 13 varieties belong to the species Rosa pimpinellifolia. This is a group of hardy shubroses, which has been cultivated since the 1600s. They form 1-2 m tall shrubs, with decorative, simple leaves and leaflets densely packed freshly scented flowers. They are easily arable, and rarely attacked by diseases. Only a few varieties are preserved and cultivated today. The other roses belong to the species R. centifolia, R. harisonii, R. rugose, R. francofurtana and wild roses (Rosa spp.). At Bioforsk Svanhovd, the roses are grown in cold, northern inland climate: The aim is to monitor the rose growth and survival in the cold northern climate, to see whether they are suitable as ornamental plants in Finnmark. To evaluate this, we will record budding, foliation, flowering, fading, rose hips formation, leaf abscission, growth and any attack by disease or pests weekly throughout the growing season over a period of 3 years.

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