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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.

Rosetta

Active

Geranium L. · Crane's Bill

HANS KRAMER VAN KWEKERIJ DE HESSENHOF B.V.

2 records

PRUNY21

Active

Prunus laurocerasus L. · Cherry laurel

SOREN NYGAARD JENSEN

2 records

Provecho

Active

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

Renlav

Active

Lavatera thuringiaca L.

Jean Renault^^^Eric Renault^^^Thierry Renault^^^Anne Renault

2 records

Remember Me

Active

Hosta Tratt. · Hosta

Vitro Westland B.V.

2 records

Relevant

Active

Rubus L. subg. Rubus · Blackberry

TROCIN Dumitru, MD

4 records

Scarlet Wonder

Active

Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. · Pampas grass

Troelstra Johan|Appelscha, NL

2 records

PRIMA 1216

Active

Asimina triloba (L.) Dunal · Pawpaw

Domenico Montanari

2 records

Silver Charm

Active

Miscanthus sinensis Andersson · Chinese silver grass

Artur Maj

2 records

Prairie Sky

Active

Hosta Tratt. · Hosta

Hansen Hans Andrew|Waseca, MN, US

2 records

PPPHL07301

Active

Phlox x procumbens Lehm.

Akiko Kitahara

2 records

PP2020

Active

Heuchera L. · Coral Flower

Matthew Bailey

2 records

Red October

Active

Andropogon gerardii Vitman · Big bluestem

Intrinsic Perennial Gardens Inc.

2 records

Sanne

Active

Lavandula stoechas L. · French lavender

Koning Smit IPR S.A.

2 records

Red Dragon

Active

Persicaria

CRYSTAL PALACE PERENNIALS LTD

2 records

Rentan

Active

Prunus laurocerasus L. · Cherry laurel

Boomkwekerij Rendering B.V.

3 records

POULtw002

Active

Rosa L. · Rose

Poulsen Roser A/S

2 records

Razzmatazz

Active

Echinacea purpurea (L.) Moench · Purple coneflower

van Winsen Johannes Matthias

2 records

POULPMT005

Application submitted

Rosa L. · Rose

Poulsen Roser A/S

2 records

Ruby Star

Active

Astrantia major L. · Masterwort

Ferdinandushof V.O.F.

2 records

Rani

Active

Rhododendron L. · Azalea

Hortibreed N.V.

2 records

Red Dream

Active

Sanguisorba officinalis L. · Great burnet

Star Jan

2 records

Poulpal103

Active

Rosa L. · Rose

Poulsen Roser A/S

2 records

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