TAN 01549
ActiveRosa L. · Rose
Hans Jurgen Evers
UA
12 records
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.
NOA 83100 B
ActiveRosa L. · Rose
Reinhard Noack
DE
8 records
FAZA 245
ActiveRosa L. · Rose
Rosaplants SCEA (FR)
FR
NL
8 records
TAN 00681
ActiveRosa L. · Rose
Hans Jurgen Evers
RISE 'N SHINE
ActiveRosa L. · Rose
Ralf MOORE (US)
FR
5 records
Korfloci 23
ActiveRosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Korfloci 01
ActiveRosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Meiqualis
ActiveRosa L. · Rose
SNC Meilland et Cie
DE
DK
ES
FR
HU
IT
+2
25 records
Meitanet
ActiveRosa L. · Rose
SNC Meilland et Cie
DE
DK
ES
FR
HU
IT
+2
23 records
Meidebenne
ActiveRosa L. · Rose
MEILLAND ALAIN ANTOINE
BG
FR
HU
PL
UA
22 records
Korveco
ActiveRosa L. · Rose
Wilhelm Kordes Sparrieschoop
BE
DE
ES
FI
FR
HU
+4
20 records
KORcilmo
ActiveRosa L. · Rose
Wilhem Kordes, Sparrieshoop
BE
DE
DK
ES
FR
HU
+3
20 records
Pekcougel
ActiveRosa L. · Rose
Pekmez, Paul|La Petite Pierre, 67290 Wingen-sur-Moder, France
DE
ES
FR
IT
NL
16 records
Korfleur
ActiveRosa L. · Rose
Wilhelm Kordes
BE
DE
FR
NL
PL
15 records
Korenon
ActiveRosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
DE
ES
FI
HU
NL
SE
15 records
Tanafira
ActiveRosa L. · Rose
ROSEN TANTAU,MATHIAS TANTAU N.
DE
FI
NL
PL
15 records
Olijplam
ActiveRosa L. · Rose
Olij Huibert W.
NL
PL
17 records
Noatraum
ActiveRosa L. · Rose
Werner NOACK (DE)
BE
DE
DK
FR
IE
IT
+2
14 records
Noaschnee
ActiveRosa L. · Rose
Werner NOACK (DE)
BE
DE
ES
FR
IE
IT
+2
14 records
Meinalpir
ActiveRosa L. · Rose
Meilland, Alain A.|Antibes, France
FR
15 records
Tanaledev
ActiveRosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
NL
PL
UA
14 records
Ruicrevi
ActiveRosa L. · Rose
POUW| A.A. Pouw
DE
ES
FR
IT
NL
13 records
Meiflopan
ActiveRosa L. · Rose
SNC Meilland et Cie
BE
DE
DK
ES
FR
IT
+2
13 records
Kornalist
ActiveRosa L. · Rose
Wilhem Kordes
DE
PL
13 records