JONIGHT
ActivePhysocarpus opulifolius (L.) Maxim. · Ninebark
Jones John,Jones Maria
Variety traits
Winter hardiness
Winter hardiness is a complex indicator of a variety's ability to remain viable throughout the winter and early spring periods, including resistance to frost and other environmental stress factors.
Mentioned in descriptions 27 261 varieties reference book.
Winter hardiness is a complex plant characteristic that includes resistance to freezing, smothering, waterlogging, frost heaving, and winter desiccation. Unlike frost resistance, which is limited to tolerance of low temperatures, winter hardiness takes into account the entire spectrum of adverse effects that lead to plant death or damage during the cold period.
The winter hardiness of a variety is evaluated using methods of field assessment of crop conditions after winter, employing scoring scales, as well as laboratory studies. The latter include direct freezing of plant monoliths, biochemical analyses of sugar accumulation, verification of the viability of the tillering node, and the use of genetic markers to determine resistance.
The level of winter hardiness depends on the genetic potential of the variety, the plant's ability to harden, agronomic cultivation practices, and the microclimate characteristics of a specific site. When choosing a variety, one should focus on regionalized forms, bearing in mind that the resistance indicator is relative and requires comparison with local standards and growing conditions.
Breakdown by crop
Winter Hardiness of Roses
555
Winter hardiness of common wheat
220
Winter hardiness of apple trees
188
Winter Hardiness — Hydrangea macrophylla
187
Pear Winter Hardiness
123
Winter hardiness — perennial ryegrass
120
Winter Hardiness of Lily
91
Winter hardiness of winter rapeseed
81
Peach winter hardiness
71
Plum Winter Hardiness
65
Winter Hardiness of Clematis
61
Grapevine Winter Hardiness
56
Winter hardiness of winter barley
56
Winter hardiness — garden strawberry
52
Winter hardiness of sweet cherry
48
Tulip winter hardiness
42
Heuchera winter hardiness
40
Winter Hardiness of Alfalfa
39
Chrysanthemum winter hardiness
39
Winter hardiness of triticale
36
Winter Hardiness of Apple
36
Winter hardiness of Hydrangea serrata
36
Grapevine Winter Hardiness
35
Winter hardiness of apricot
35
Found in these crops
Varieties that feature this in their description
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
HM 1218
ActiveHelleborus lividus Aiton x Helleborus niger L. x Helleborus x hybridus hort. ex Voss
Josef Heuger
JLPN01
ActiveParrotia persica (DC.) C. A. Mey.
JOHNATHON LEE LEWIS
HL 1018
ActiveHelleborus niger x Helleborus x hybridus
Josef Heuger
Jethro Tull
ActiveCoreopsis auriculata x Coreopsis lanceolata
Saul Robert Mark|Atlanta, GA, US
Jantar
ActiveThuja occidentalis L. · Northern white-cedar
Wlodzimierz Flejszer^^^Franciscus van Gils^^^Jakub Jablonski
Kassandra
ActiveHeuchera L. · Coral Flower
Sandrine Delabroye
Hillav
ActiveLavandula x intermedia Emeric ex Loisel. · Lavandin
Hillier Nurseries Ltd
Irresistible
ActiveEchinacea purpurea (L.) Moench · Purple coneflower
van Noort Marco|2361 HG Warmond, NL
Fondant Fancy
ActivePhlox paniculata L. · Garden phlox
Verschoor Jan|Haarlem, NL
Hbabab
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Intense
ActiveGeranium x cantabrigiense Yeo
Rotteveel Roy
Fireball
ActiveBerberis thunbergii DC. · Japanese barberry
Michal Andrusiv
Inov42
ActiveLonicera L. · Honeysuckle
Kapusta Veronique|Beaucouze, FR
Ivory Hearts
ActiveDicentra Bernh. · Bleeding heart
Shiozaki Akira|Fukagawa, JP
Hachliss
ActiveDasiphora fruticosa (L.) Rydb. subsp. fruticosa · Shrubby cinquefoil
Holger Hachmann
Golden Dream
ActiveBerberis thunbergii DC. · Japanese barberry
Michal Andrusiv
Going Bananas
ActiveHemerocallis L. · Daylily
Walters Gardens Inc
Interyassor
ActiveRosa L. · Rose
ir.A.J.H.van Doesum
Glenariff
ActiveLolium perenne L. · Perennial ryegrass
Agri-food and Biosciences Institute (AFBI Belfast)
Flamingo Feathers
ActiveBistorta amplexicaulis (D. Don) Greene · Red bistort
Lommerse, Gerardus Adrianus P. / Lommerse, Hendrikus Petrus
ICHWHIT
ActiveScabiosa L. · Pincushion flower
Kaori Ichiba
Hylv02
ActiveHydrangea paniculata Siebold · Panicled hydrangea
van Rosmalen Nick
HYLV17522
ActiveHydrangea paniculata Siebold · Panicled hydrangea
Lendert De Vos