AUSkitchen
ActiveRosa L. · Rose
DAVID JC AUSTIN
Variety traits
Winter Hardiness of Roses
Rosa L.
The winter hardiness of a rose is determined by the plant's ability to withstand a complex of winter-spring factors, including humidity and thaws, and is evaluated using a 7-point scale and USDA hardiness zones.
In the reference 555 varieties crop Rose, where this is mentioned in the description.
The winter hardiness of roses is evaluated as the plant's ability to withstand adverse conditions of the winter-spring period, including air humidity, snow cover stability, and recurring frosts. In scientific practice, a 7-point scale is used to analyze the condition of shoots, buds, and tissues after overwintering, while USDA hardiness zones are used for the preliminary selection of varieties.
The genetic potential for winter hardiness varies significantly between rose groups. Hybrid tea varieties, originating from the thermophilic species Rosa chinensis, possess low winter hardiness and are sensitive to sub-zero temperatures. In contrast, species roses and hybrids of the Rugosa group demonstrate high resistance, adapted to harsh climatic conditions.
Agrotechnical measures for covering roses depend directly on the winter hardiness rating of a specific variety. One of the key problems during cultivation is the risk of tissue damping-off under cover during thaws, which makes winter hardiness the determining factor for the longevity of plantings under specific microclimate conditions.
General information about the subject — on the page Winter hardiness.
Varieties of Rose mentioned in the description
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.
Ausjosiah
ActiveRosa L. · Rose
DAVID JC AUSTIN
Ausegdon
ActiveRosa L. · Rose
DAVID JC AUSTIN
Uhlater
Protection expiredRosa L. · Rose
WALTHER UHL BAUMSCHULEN
DE
DK
FR
NL
PL
6 records
Tanydal
ActiveRosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
DE
FR
IT
NL
PL
6 records
Tangust
ActiveRosa L. · Rose
Rosen Tantau KG
DE
PL
6 records
Tanakinom
ActiveRosa L. · Rose
Rosen Tantau KG
DE
HU
NL
6 records
Radtko
ActiveRosa L. · Rose
William RADLER
POULtry
Application submittedRosa L. · Rose
Poulsen Roser A/S
DK
PL
7 records
Poulrust
ActiveRosa L. · Rose
Poulsen Roser A/S
DK
NL
PL
6 records
Poulrijk
ActiveRosa L. · Rose
Poulsen Roser A/S
DK
NL
PL
7 records
POULria
ActiveRosa L. · Rose
Poulsen Roser A/S
DK
NL
PL
7 records
Poulreb
ActiveRosa L. · Rose
POULSEN ROSER A/S
DK
PL
7 records
POULnorm
ActiveRosa L. · Rose
Poulsen Roser A/S
DK
PL
6 records
POULfeld
Application submittedRosa L. · Rose
Poulsen Roser A/S
DK
PL
7 records
Pouldom
ActiveRosa L. · Rose
Poulsen Roser A/S
PL
6 records
Pejamblu
ActiveRosa L. · Rose
Peter Joseph James
Meivestal
ActiveRosa L. · Rose
Meilland, Marie-Louise
DE
DK
FR
IT
SE
6 records
Meitoifar
ActiveRosa L. · Rose
Meilland, Alain A.|Antibes, France
DE
FR
IT
6 records
Meisolroz
Protection expiredRosa L. · Rose
Meilland, Marie-Louise
DE
FR
NL
SE
6 records
Meipelta
ActiveRosa L. · Rose
Meilland, Alain A.|Antibes, France
FR
IT
NL
6 records
Meipaleo
ActiveRosa L. · Rose
Meilland, Alain A.|Antibes, France
DE
DK
IT
6 records
Meilomit
ActiveRosa L. · Rose
Meilland Alain A.
PL
7 records
Meiheven
ActiveRosa L. · Rose
Meilland Alain A.|Antibes, FR