Variety traits
Rosa L.
A key biological trait of roses that determines the survival of cultivars at sub-zero temperatures. It is assessed using the USDA hardiness zone scale and scoring systems for shoot freeze damage.
In the reference 263 varieties crop Rose, where this is mentioned in the description.
To assess the frost resistance of roses, USDA zones based on minimum temperatures and scoring scales that record the degree of damage to annual and biennial shoots are used. Highly resistant varieties, such as Canadian roses, can withstand temperatures down to –40 °C, whereas Hybrid Tea groups often require covering at –25 °C.
It is important to distinguish between frost resistance and winter hardiness: the latter is a comprehensive characteristic that includes reaction to winter thaws, damping off, and desiccation. Low winter hardiness reduces the lifespan of a bush to a few seasons, while proper cultivar selection and consideration of the site's microclimate ensure the longevity of plantings for up to 30 years.
General information about the subject — on the page Frost hardiness.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Rosa L. · Rose
Societe Nouvelle des Pepinieres & Roseraies Georges DELBARD (FR)
Rosa L. · Rose
ROSE BARNI (IT)
Rosa L. · Rose
Reinhard Noack
Rosa L. · Rose
Rosen Tantau KG
Rosa L. · Rose
Bernard Sauvageot
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Alessandro Ghione
Rosa L. · Rose
Meilland Alain A.|Antibes, FR
Rosa L. · Rose
Alain Antoine Meilland
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Rosa L. · Rose
Interplant Roses B.V
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Rosa L. · Rose
HARKNESS NEW ROSES LTD
Rosa L. · Rose
Interplant Roses B.V
Rosa L. · Rose
Select Breeding B.V.
Rosa L. · Rose
Dickson Nurseries Ltd
Rosa L. · Rose
JAMES COCKER AND SONS