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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.

SCHROLLA07

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Schroll Management ApS

2 records

Stand By Me

Active

hybrids between Clematis fremontii S. Watson and Clematis integrifolia L.

Hansen Hans A

2 records

Shining

Active

Helleborus niger L. · Christmas rose

Johannes Teunis Verboom

2 records

Route 66

Active

Coreopsis L. · Tickseed

IT Saul Plants LLC

2 records

SCHNUP2

Active

Leucothoe fontanesiana (Steud.) Sleumer · Dog-hobble

Frank Schnupper

2 records

SB300

Active

Buxus sinica (Rehder & E. H. Wilson) M. Cheng · Chinese boxwood

Saunders Genetics LLC

3 records

Silhouette

Active

Acer palmatum Thunb. · Japanese maple

Yutaka Tanaka

2 records

Razzle Dazzle

Active

Astilbe x arendsii H. Junge · Arends astilbe

Verduin Harrie

2 records

Saturn

Active

Prunus persica (L.) Batsch · Peach

Swim, Herbert C|Ontario, CA

3 records

Raspberry Ice

Active

Heuchera L. · Coral Flower

Oliver Charles

2 records

Rainer

Active

Vinca minor L. · Lesser periwinkle

Mueller Hans

4 records

Radapshin

Active

Rosa L. · Rose

William J. Radler

2 records

Serengeti

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

Sara

Active

Lilium L. · Lily

Rhee Hye Kyung, Kim kwang jin, Jo hae lyong, Kim Young Jin, Lim Jin Hee

2 records

Sanne

Active

Calluna vulgaris (L.) Hull · Common heather

Edens Creations B.V.

2 records

Snow Love

Active

Helleborus x nigercors J. T. Wall

van Paemel Thierry|Oostkamp, BE

2 records

Salvo

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

SMNIVDFC

Active

Itea virginica L. · Sweetspire

Wood Timothy D

2 records

Salmon Van Eijk

Active

Tulipa L. · Tulip

Testcentrum voor Siergewassen B.V.

2 records

SMNBDB

Application submitted

Buddleja davidii Franch. · Butterfly bush

Megan Mathey

2 records

Seafoam

Active

Tiarella L. · Foamflower

TERRA NOVA NURSERIES INC

2 records

Smile At Me

Active

Astilbe x arendsii H. Junge · Arends astilbe

Tom de Bruijn

3 records

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