Dark Secret
ActiveHeuchera L. · Coral Flower
Gérard DARQUES-BILLET, Josiane DARQUES-BILLET
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.
Drum and Bass
ActiveAstilbe Buch.-Ham. ex D. Don · False goat's beard
Verduin Harry G. J.|Heemskerk, NL
Butterfly Kisses
ActiveEchinacea purpurea (L.) Moench · Purple coneflower
Blom Arie
Brina
ActiveMalus domestica (Suckow) Borkh. · Apple
Antonio Bergamini
Cracked Ice
Activex Heucherella H. R. Wehrh. · Foamy bells
Janet N. Egger
COSEH 860
ActiveHelleborus x ericsmithii
Josef Heuger
Crested Surf
ActiveAthyrium niponicum (Mett.) Hance · Japanese painted fern
Hansen Hans A
COSEH 890
ActiveHelleborus x ballardiae B. Mathew
Josef Heuger
Botex 011
ActiveBuddleja davidii Franch. · Butterfly bush
Koot Johannes Adrianus Maria
Botex 006
ActiveBuddleja davidii Franch. · Butterfly bush
Van Son & Koot Holding B.V.
Concesarini
ActiveThuja occidentalis L. · Northern white-cedar
Gabriel Cesarini
Coconut
ActiveLeucanthemum x superbum (Bergmans ex J. W. Ingram) D. H. Kent · Shasta daisy
Korlipara Harini
Donna May
ActivePhysocarpus opulifolius (L.) Maxim. · Ninebark
Zlesak David Charles
Clancy
ActiveFragaria x ananassa Duchesne ex Rozier · Garden strawberry
Weber Courtney A.|Geneva, NY, US / Sanford John C.|Livonia, NY, US / Maloney Kevin E.|Phelps, NY, US
Coadelfla
ActiveDelphinium L. · Larkspur
Coakley Anthony Paul
Delstrirocrem
ActiveRosa L. · Rose
Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.
Black Magic
ActiveRubus L. subg. Rubus · Blackberry
BERRYWORLD PLUS LTD
Botex 009
ActiveBuddleja davidii Franch. · Butterfly bush
Koot Johannes Adrianus Maria
Black Adder
ActivePhormium cookianum Le Jol. · mountain-flax
Patrick Fitzgerald
Circus
ActiveHeuchera L. · Coral Flower
Sandrine Delabroye
Charme
ActiveAnthemis tinctoria L.
Kwekerij Kabbes V.O.F.
Cherry Truffles
ActiveHeuchera L. · Coral Flower
Hansen Hans A
DC014455LS
ActiveLavandula stoechas L. · French lavender
Decock Youngplants S.P.R.L.
Bella Notte
ActiveHeuchera L. · Coral Flower
Janet N. Egger