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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.

Sources10

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

Rose 1 062 Apple 843 Bread wheat 657 Lily 410 European pear 348 Bigleaf hydrangea 315 Peach 264 Rapeseed 258 European plum 245 Grapevine 229 Perennial ryegrass 224 Sweet cherry 223

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.

White Wings

Active

Astilbe Buch.-Ham. ex D. Don · False goat's beard

Wilhelmus Franciscus van Veen

3 records

Tango

Active

Heuchera L. · Coral Flower

Janet N. Egger

3 records

Topaz Jazz

Active

Heuchera L. · Coral Flower

Janet N. Egger

3 records

Walgoldalex

Active

Lysimachia punctata L. · Dotted loosestrife

Tristram David R.

3 records

Tobudvelve

Active

Buddleja davidii Franch. · Butterfly bush

Charles Valin, Thompson & Morgan (UK) Ltd

3 records

White Magic

Active

Gentiana makinoi Kuzen.

Kwekerij de Boezem B.V.

3 records

Tobudskybl

Active

Buddleja davidii Franch. · Butterfly bush

Charles Valin, Thompson & Morgan (UK) Ltd

3 records

TNHEUNEL

Active

Heuchera L. · Coral Flower

Janet N. Egger

3 records

Tan07877

Active

Rosa L. · Rose

EVERS CHRISTIAN

4 records

Vision Inferno

Active

Astilbe Buch.-Ham. ex D. Don · False goat's beard

Wilhelmus Franciscus van Veen

3 records

TAN00798

Active

Rosa L. · Rose

Hans-Juergen Evers

3 records

UCONNAM166

Active

Aronia melanocarpa (Michx.) Elliott · Black chokeberry

University of Connecticut

3 records

YASPED

Active

Begonia boliviensis A. DC. · Bolivian begonia

Yates Frederic C.

3 records

Taina

Terminated

Phleum pratense L. · Timothy grass

Boreal Plant Breeding Ltd, FIN-31600 Jokioinen

3 records

Tiara

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan

3 records

Velda

Active

Weigela Thunb. · Bush Honeysuckle

Verhoef Gijsbertus

3 records

Tequila Flame

Active

Lupinus L. · Lupine

Sarah Frances Conibear

3 records

Tor Gold

Active

Spiraea betulifolia Pall.

Stolwijk, Ton

3 records

Verweig 8

Active

Weigela florida (Bunge) A. DC. · Old fashioned weigela

Verhoef Gijsbertus

5 records

Tanya Rendall

Active

Geranium L. · Crane's Bill

Rendall Richard|Kerkwall Orkney, GB

3 records

Sunset Ridge

Active

Tiarella L. · Foamflower

Janet N. Egger

4 records

Tan96191

Active

Rosa L. · Rose

Hans-Juergen Evers

3 records

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