COSEH 5600
ActiveHelleborus L. · Christmas Rose
Josef Heuger
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.
Barocior
TerminatedDianthus caryophyllus L. · Carnation
GIDEON SCOVEL
Coseh 240
ActiveHelleborus niger L. · Christmas rose
Josef Heuger
COSEH 4800
ActiveHelleborus L. · Christmas Rose
Josef Heuger
Coseh 2010
ActiveHelleborus niger L. · Christmas rose
Josef Heuger
COSEH 3140
ActiveHelleborus L. · Christmas Rose
Josef Heuger
Bouquet
ActiveVeronica L. · Speedwell
Leonardus Theodorus Antonius Vergeer, VERGEER VINCENT
Coralberry
ActiveHeuchera L. · Coral Flower
Jelle van den Haak
Copper Beauty
ActiveLonicera L. · Honeysuckle
C. Esveld V.O.F.
Copper Queen
ActiveHibiscus coccineus x Hibiscus moscheutos L.
Zwetzig Gretchen
Crystal Veil
ActiveMolinia arundinacea Schrank
Petrus Hendricus Oudolf
Condappin
ActiveBuddleja davidii Franch. · Butterfly bush
Trees Scott C
Balyricsil
TerminatedSalvia x sylvestris L. · Wood sage
PAN AMERICAN SEED CO
Conti
ActiveAbelia x grandiflora Rehder · Glossy abelia
Gwaltney, James T.|Theodore, AL
Bozbluspix
ActiveRosa L. · Rose
Pheno Geno Rose D.O.O.
Bocofire
Application submittedDiervilla x splendens (Carrière) G. Kirchn.
Kraan Kees Jan
Bowles Me Away
ActiveErysimum linifolium (Pers.) J. Gay · Wallflower
Trees Scott C
Aushouse
ActiveRosa L. · Rose
David Austin Roses
Bounty Way
ActiveRosa L. · Rose
Lee Young Soon, Lim Seung Hee, Lee Jung Jin, Kim Soon Jae, Jeong Young Min, Chung Hae Im
Blue Star
ActiveGentiana makinoi Kuzen.
Kwekerij de Boezem B.V.
COSEH 6900
ActiveHelleborus L. · Christmas Rose
Josef Heuger
Botex 004
ActiveBuddleja davidii Franch. · Butterfly bush
Van Son & Koot Holding B.V.
Bosachskyye
ActiveAchillea millefolium L. · Yarrow
Klaasse Bos-Bos Adriana
CORHEESFT
ActiveCornus kousa Burger ex Hance · Kousa dogwood
van Aart Mario