Forest Fire
Application submittedHosta Tratt. · Hosta
CLIFFORD'S PERENNIAL & VINE
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.
Glamour Unique
ActiveTulipa L. · Tulip
C.J.J. van Schagen Bloembollen B.V.
IFECSSWP
ActiveEchinacea Moench. · Coneflower
Spil Glenn
IFECSSGOLD
ActiveEchinacea Moench. · Coneflower
Spil Glenn
Ibcom
ActiveIberis sempervirens L. · Evergreen candytuft
Syngenta Seeds B.V.
INHEUTIORA
ActiveHeuchera L. · Coral Flower
WALTER LUDWIG
HP221904
ActiveHydrangea paniculata Siebold · Panicled hydrangea
Hydrangea Breeders Association B.V.
Howell TC7
Application submittedMalus domestica (Suckow) Borkh. · Apple
WILLIAM EDWARD HOWEL
EVIPO017
TerminatedClematis L. · Clematis
Poulsen Roser A/S^^^Raymond J. Evison Ltd.
Georgie Red
ActiveDiplacus aurantiacus (Curtis) Jeps. · Bush monkeyflower
Trees Scott C
HORT40
ActiveRhododendron molle (Blume) G. Don · Chinese azalea
HORTIBREED NV
Ever After
ActiveVeronica spicata L. · Spiked speedwell
Hansen Hans A
Glen Doll
ActiveRubus idaeus L. · Red raspberry
The James Hutton Institute, Dundee, DD2 5DA
Horgew
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Jungpflanzen Claus & Torsten Kühne GbR
GK. Basa
TerminatedTriticum durum Desf. · Durum wheat
Gaudi Violet
ActiveCampanula L. · Bellflower
Vitroflora Grupa Producentów Sp. z o.o.
Gina
ActiveCalluna vulgaris (L.) Hull · Common heather
Kurt Kramer
ET DLP 838
ActiveDelphinium x belladonna hort. ex Bergmans · Belladonna delphinium
Eternal Plant Boijl B.V.
IFHEPR
ActiveHeuchera L. · Coral Flower
van den Haak Jelle
GGR2022
Application submittedSempervivum L. · Houseleek
Christopher M Hansen
HL 1078
Application submittedHelleborus niger x Helleborus x hybridus
Josef Heuger
Eskil
ActiveHedera helix L. · Common ivy
Tomas Lagerström
Hip Hop
ActiveAstilbe Buch.-Ham. ex D. Don · False goat's beard
Henricus G.J. Verduin
EP ACEPA
ActiveAcer platanoides L. · Norway maple
Tomas Lagerström