Zofofri
ActiveClematis L. · Clematis
Wim Snoeijer
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.
Zo08160
ActiveClematis L. · Clematis
van Zoest Jan
WALHIROSMO
ActiveHybrids between Hibiscus paramutabilis and Hibiscus syriacus
Walberton Plants LTD
Aberforth
ActiveLolium perenne L. · Perennial ryegrass
Aberystwyth University (IBERS)
NL
4 records
Aalsmeer
ActiveBrassica oleracea L. (Cauliflower Group) · Cauliflower
A L TOZER LTD
NL
3 records
Walplum
ActiveSpiraea japonica L. f. · Japanese meadowsweet
Walberton Plants LTD
Vlasveld 02
ActiveHydrangea paniculata Siebold · Panicled hydrangea
Peter Vlasveld
Vintage Wine
ActiveHibiscus L. · Hibiscus
Hansen Hans A
Valda Kitty
ActiveDianthus x allwoodii hort. · Allwood pink
Whetman John
Vision in Red
ActiveAstilbe chinensis (Maxim.) Franch. & Sav. · Chinese astilbe
Wilhelmus Franciscus van Veen
Zarsbsun
ActiveRosa L. · Rose
Zary Keith W.
White Star
ActiveLithodora diffusa (Lag.) I. M. Johnst. · Purple gromwell
Takao Danny|Fresno, CA 93722, US
Venice
ActiveAstrantia major L. · Masterwort
Oudshoorn Hubertus Gerardus|Rijpwetering, NL
Yapor
TerminatedPhygelius E. Mey. · Cape fuchsia
Frederic Yates, A T Yates & Son
Zojapur
ActiveClematis L. · Clematis
Wim Snoeijer
WIT141205
ActiveClematis L. · Clematis
Marco de Wit
UMan
ActiveDasiphora fruticosa (L.) Rydb. subsp. fruticosa · Shrubby cinquefoil
University of Manitoba
Wings of Fire
ActiveWeigela florida (Bunge) A. DC. · Old fashioned weigela
Kolster Hendrik|Boskoop, NL
TVP2
ActiveWeigela Thunb. · Bush Honeysuckle
Verhoef Gijsbertus
Violet Filli
ActiveLagerstroemia indica L. · Crape myrtle
Fleming's Flower Fields Inc.
Turandot
ActivePyrus communis L. · European pear
Lorenzo Rivalta
Whirlwind
ActiveMolinia caerulea (L.) Moench · moor grass
Petrus Hendricus Oudolf
TRIFPOT001
ActiveTrifolium repens L. · White clover
Jensen Bent Juhl
Tequila Sunrise
ActivePhlox paniculata L. · Garden phlox
Verschoor Jan|Haarlem 2015 CS, NL