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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

Winter protection — Hydrangea macrophylla 237 Winter protection for lettuce 141 Winter protection of roses 96 Winter Cover — White Cabbage 87 Winter protection of grapevine 79 Winter covering of radish 71 Winter protection for lilies 63 Winter protection of chrysanthemums 52 Winter protection of grapes 37 Winter protection — Garden strawberry 29 Winter protection — raspberry and blackberry 25 Winter protection for carrots 25 Winter protection for Clematis 20 Winter protection of blackberries 20 Winter covering of endive 19 Winter protection — Hydrangea serrata 17 Winter protection of fig trees 15 Winter protection of Hydrangea 15 Winter covering of potatoes 15 Winter protection of radish 14 Winter protection — Garden Chrysanthemum 13 Winter protection — Chinese cabbage 13 Winter protection of asparagus 11 Winter protection — Rubus idaeus L. x Rubus subg. Eubatus Focke 11

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.

JN100

Active

Cercis canadensis L. · Eastern redbud

Ray Jackson^^^Cindy Jackson

2 records

LOBZ0015

Active

Lobelia erinus L. · Edging lobelia

Syngenta Participations AG

2 records

Jelverpurp

Active

Glandularia canadensis (L.) Nutt.

Uebelhart Georg

2 records

Jasoda Yellow

Terminated

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

2 records

Lariva Red

Active

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

2 records

KF 576

Application submitted

Malus domestica (Suckow) Borkh. · Apple

Franz Kaufmann

2 records

JWW6

Active

Pieris japonica (Thunb.) D. Don ex G. Don · Japanese pieris

Jan-Willem Wezelenburg Boskoop B.V.

2 records

Julisa

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Jean-Paul Davasse

2 records

Juani

Active

Cannabis sativa L. · Hemp

Salvatore Casano^^^Phytoplant Research S.L.

2 records

Korneobit

Active

Rosa L. · Rose

Wilhelm-Alexander Kordes, Tim-Hermann Kordes, John-Vincent Kordes

2 records

Lexy Red

Active

Chrysanthemum L. · Chrysanthemum

FGB B.V.

2 records

KLEDS11149

Active

Dianthus caryophyllus L. · Carnation

HYBRIDA S.R.L

2 records

KEYFLY

Active

Abelia x grandiflora Rehder · Glossy abelia

Klemens Keysers

2 records

Kerverwhite

Active

Petunia Juss. · Petunia

Priscilla Grace Kerley, David William Kerley

2 records

KRVALWH02

Active

Begonia x hiemalis Fotsch · Elatior Begonia

LUBBERTUS H.KOPPE

2 records

Kathy

Active

Euonymus japonicus Thunb. · Japanese spindle

Donné Goesaer-Geirnaert

2 records

Kiegalyel

Active

Gaillardia aristata Pursh · Blanketflower

Moonen Carla M.|Enkhuizen, NL

2 records

JWW4

Active

Cercidiphyllum japonicum Siebold & Zucc. · katsura-tree

Jan-Willem Wezelenburg Boskoop B.V.

2 records

Interuspa

Terminated

Rosa L. · Rose

Interplant Roses B.V

2 records

KRSWESA01

Active

Begonia x hiemalis Fotsch · Elatior Begonia

LUBBERTUS H.KOPPE

2 records

INNOENO131

Active

Oenothera fruticosa L. · narrow-leaf evening-primrose

Silvia Hofmann

2 records

Jubilo

Active

Carex brunnea Thunb.

Bloemisterij "De Snipperling" V.O.F.

2 records

Koprimang

Active

Dianthus L. · Carnation

P.Kooij & Zonen B.V.

2 records

Jasoda Pink

Active

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

2 records

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