Frycalm
ActiveRosa L. · Rose
Gareth R. Fryer
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.
HG 1428
Activehybrids between Helleborus x ericsmithii B. Mathew and Helleborus x hybridus hort. ex Voss
Josef Heuger
Garnet
ActiveCoreopsis L. · Tickseed
Korlipara Harini
Fairytale
ActiveVeronica L. · Speedwell
Verschoor Jan|Haarlem, NL
Garann
ActiveAcer tataricum L.
PLANT SELECT
Facconable
ActiveLilium L. · Lily
Testcentrum voor Siergewassen B.V.
Elin
ActiveTilia cordata Mill. · Small-leaved lime
Rune Bengtsson^^^E-planta ekonomisk förening
HER2009T06
ActiveTaxus baccata L. · European yew
Herplant B.V.
Edvard
ActiveHedera helix L. · Common ivy
Tomas Lagerström
Edens Paradise
ActiveIlex crenata Thunb. · Japanese holly
Thomas Zimmer
Heaven in Blue
ActiveSalvia x sylvestris L. · Wood sage
Beate Zillmer
EVIPO081
ActiveClematis L. · Clematis
Poulsen Roser A/S^^^Raymond J. Evison Ltd.
Holkahori
ActiveDianthus superbus L. · Large pink
Kazuyuki Shishido
Early Burlat
ActivePrunus avium (L.) L. · Sweet cherry
Evert de Gier
ActiveSyringa vulgaris L. · Common lilac
Jan-Willem Wezelenburg Boskoop B.V.
FLOPHFABDC
ActivePhlox subulata L. · Creeping phlox
Florensis B.V.
Flippi01
ActivePrunus laurocerasus L. · Cherry laurel
Adrian Straver
Harunite
ActiveRosa L. · Rose
HARKNESS NEW ROSES LTD
Frenne
ActiveHydrangea paniculata Siebold · Panicled hydrangea
Guido Rouwette
HLR 190
ActiveHelleborus L. · Christmas Rose
Josef Heuger
Franconia
ActiveVitis L. · Grapevine
Peterson Kevin / Peterson Kyle
ET LPN 813
ActiveLupinus L. · Lupine
Eternal Plant Boijl B.V.
Harmanna
ActiveRosa L. · Rose
HARKNESS NEW ROSES LTD
Havanna
ActiveCalluna vulgaris (L.) Hull · Common heather
Edens Creations B.V.