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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.

Bling Bling

Terminated

Dianthus caryophyllus L. · Carnation

P.Kooij & Zonen B.V.

2 records

Atomic Pink

Active

Veronica L. · Speedwell

Verschoor Jan|Haarlem, NL

2 records

Black Beauty

Active

Heuchera L. · Coral Flower

TERRA NOVA NURSERIES INC

2 records

Chang Nian Hong

Active

Loropetalum chinense (R. Br.) Oliv. · Chinese fringe flower

Mark Griffith

2 records

Colares

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

Bokrarob

Active

Weigela Thunb. · Bush Honeysuckle

Boot & Co. Boomkwekerijen B.V.

2 records

BIV01

Active

Hydrangea quercifolia W. Bartram · Oakleaf hydrangea

Tara Bivin

2 records

Birthday Cake

Application submitted

x Heucherella H. R. Wehrh. · Foamy bells

Gossett Gary J.|Portland, OR, US

2 records

Celestial

Active

Lonicera x brownii (Regel) Carrière x Lonicera periclymenum

Barry Fretwell

2 records

Blue Pearl

Active

Hylotelephium x Sedum

Christopher M Hansen

2 records

Blue Light

Active

Clematis L. · Clematis

F.C.M. VAN HAASTERT

2 records

APF236T

Active

Rubus L. subg. Rubus · Blackberry

JOHN REUBEN CLARK

5 records

Black Snowflake

Active

Tiarella L. · Foamflower

TERRA NOVA NURSERIES INC

2 records

Chubby

Active

Metasequoia glyptostroboides Hu et Cheng · Dawn redwood

Petrus Wilhelmus van Leijden

2 records

Auckland

Active

Zantedeschia Spreng. · Arum-lily

Sande B.V.

2 records

Cantaloupe

Active

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

HARINI KORLIPARA

2 records

Barsnow

Active

Rosa L. · Rose

Societa Agricola Rose Barni S.S. di Barni Vittorio & C..

2 records

Candy Love

Active

Helleborus x nigercors J. T. Wall

van Paemel Thierry|Oostkamp, BE

2 records

Armando

Terminated

Salix repens L. · Creeping willow

BOOMKWEKERIJ A. NIEUWESTEEG B.V.

2 records

BELSEMYEL1

Active

Sempervivum arachnoideum L. · Cobweb houseleek

BELGICACTUS B.V.B.A.

2 records

Armandale

Active

Lilium L. · Lily

Van Zanten Flowerbulbs B.V

2 records

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