Cultivation

Winter covering

Winter covering is an agrotechnical practice for plant protection, indicating a variety's insufficient adaptation to the local climate. The necessity of this procedure shifts crop cultivation into an intensive and labor-intensive format, requiring regular expenditures and strict adherence to work s…

Mentioned in descriptions 14 029 varieties reference book.

The need for winter covering manifests as mandatory annual plant preparation, including mulching, hilling, bending down shoots, or using protective frames and materials. This is a variety marker indicating its inability to independently withstand local climatic conditions, which compels the agronomist to create an artificial environment for protection against frost damage.

Protection effectiveness directly depends on adhering to timelines and the quality of materials used. Early covering at high temperatures can provoke rotting or the development of fungal diseases, while late covering will not protect against early frosts. The success of the operation is also determined by the general condition of the plants: weakened specimens or an excess of nitrogen nutrition in autumn increase the risk of death even when protective structures are present.

Assessing the feasibility of covering relies on economic profitability and agrotechnical capabilities. With the aging of woody and shrub crops, the complexity of installing structures increases, which reduces the scalability of plantings. When choosing a variety, it is recommended to consider frost resistance data and prioritize regionalized winter-hardy alternatives that do not require manual intervention during the winter period.

Sources10

Breakdown by crop

Found in these crops

Apple 613 Grapevine 393 Tomato 340 Peach 338 Melon 293 Cauliflower 270 Bell pepper 263 Perennial ryegrass 246 Rose 242 Cucumber 230 Watermelon 219 Bigleaf hydrangea 198

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.

Western Giant

Active

Allium cepa L. · Onion

Nick Dragoescu

3 records

Weslowei

Active

Lobelia erinus L. · Edging lobelia

Westhoff Heinrich

2 records

White Sensation

Active

Solanum lycopersicum L. · Tomato

ReinSaat KG

2 records

White Knight

Active

Solanum melongena L. · Eggplant

Indus & Burpee Private Ltd

2 records

Watson

Terminated

Rubus L. · Blackberry

SANFORD| J.C. Sanford & J.E. Reich c/o Dept. of Horticultural Sciences Cornell University

2 records

Wests

Terminated

Cucumis melo L. · Melon

HANDELSGARTNER WEST

2 records

White Passion

Terminated

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Sakata Seed Corporation (SCC)

3 records

Yellowleaf

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Yamamoto Takeomi

2 records

Viscomech

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

2 records

Yaltinets

Active

Prunus armeniaca L. · Apricot

Rikhter Oleksandr Oleksandrovych, Smykov Volodymyr Karpovych, Polianychenko Kateryna Vasylivna, Horina Valentyna Mylentiivna,

4 records

Werre

Active

Brassica oleracea L. (Kohlrabi Group) · Kohlrabi

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

2 records

Victoria

Active

Cucumis sativus L. · Cucumber

Hodowla Roslin Snowidza Sp.z.o.o

2 records

Vinicio

Active

Capsicum annuum L. · Bell pepper

Vilmorin-Mikado SAS (FR)

2 records

Verte à coeur plein 3

Active

Valerianella locusta (L.) Laterr. · Corn salad

Domaine Public (FR)

2 records

Vitalo

Terminated

Allium cepa L. var. cepa · Onion

Hazera Seeds B.V.

2 records

Verte à couper

Active

Beta vulgaris Leaf Beet Group · Swiss chard

Domaine Public (FR)

3 records

Whisper

Active

Lactuca sativa L. · Lettuce

Gautier Semences SAS (FR)

2 records

Weksecunk

Active

Rosa L. · Rose

Weeks Roses

2 records

Wekjuvoo

Active

Rosa L. · Rose

Weeks Roses Inc (US)

2 records

WEKisosblip

Active

Rosa L. · Rose

Weeks Roses Inc (US)

2 records

Venezia

Active

Avena strigosa Schreb. · Black oat

SEMENCES DE FRANCE

2 records

Vendula

Protection expired

Festuca rubra L. · Red fescue

Oseva Uni a.s., CZ

3 records

Vidal

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

ISI SEMENTI SPA

2 records

Vancouver

Application submitted

Lolium perenne L. · Perennial ryegrass

DLF Seeds A/S

2 records

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Cultivation

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.