Everglow
ActiveCarex morrowii Boott · Japanese sedge
Patrick Fitzgerald
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.
Eva
ActiveCornus kousa Burger ex Hance · Kousa dogwood
Domen Adrianus Johannes Marie
Fruit Punch
ActiveCoreopsis L. · Tickseed
Korlipara Harini
Freya
ActiveCampanula glomerata L. · Clustered bellflower
Blom Arie
Frenzy
ActiveGaillardia x grandiflora hort. ex Van Houtte · Blanket flower
John A. Dixon
Forever Pink
ActivePhlox L. · Phlox
JAMES ROBERT AULT
Dekaviator
ActiveChrysanthemum L. · Chrysanthemum
Cornelis W. Dekker
Forever Purple
ActiveHeuchera L. · Coral Flower
Janet N. Egger
Forbidden Fruit
ActiveHosta Tratt. · Hosta
Martinus Jacobus Wilhelmus Fransen
Echcher298
ActiveEchinacea purpurea (L.) Moench · Purple coneflower
Holtmaat Henricus Maria Joseph
Gajo
ActivePrunus laurocerasus L. · Cherry laurel
Nouws Wilhelmus Petrus Catharina|4882 NJ Zundert, NL
Desert Black
ActiveHylotelephium telephium (L.) H. Ohba · Orpine
Janet N. Egger
Flauder
ActiveTriticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Getreidezüchtung Peter Kunz
DELA 105
ActiveHeuchera L. · Coral Flower
Sandrine Delabroye
Fireworks
ActiveZantedeschia Spreng. · Arum-lily
Sande B.V.
Florence
ActiveAstrantia major L. · Masterwort
Oudshoorn Hubertus Gerardus|Rijpwetering, NL
December
ActivePicea glauca (Moench) Voss · White spruce
Dirk Scholten
Fenre
ActiveLolium x hybridum Hausskn. · Hybrid ryegrass
Landbruks- og matdepartementet, N - 0030 Oslo
DAVROU01
ActiveSpiraea japonica L. f. · Japanese meadowsweet
Jean-Paul Davasse
Couharie
ActiveHydrangea paniculata Siebold · Panicled hydrangea
Lilaveronica S.A.R.L.
Fantasia
ActiveHibiscus L. · Hibiscus
FLEMING DAVID W.^^^Gretchen Zwetzig
Cosmopolitan
ActivePhlox paniculata L. · Garden phlox
Verschoor Jan|Haarlem, NL
Fanfare
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Toyokazu Ichie
COSEH 930
ActiveHelleborus x ballardiae B. Mathew
Josef Heuger