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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.

Hardrock

Active

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

Harbabble

Protection expired

Rosa L. · Rose

HARKNESS NEW ROSES LTD

2 records

Gradiana

Active

Malus domestica (Suckow) Borkh. · Apple

Gradilis Recherche SARL

3 records

Gala 2013

Active

Malus domestica (Suckow) Borkh. · Apple

DEFRANCESCHI ALOIS

4 records

Funny Girl

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

INLOBLILAC

Active

Lobelia erinus L. · Edging lobelia

Birgit Hofmann

2 records

Inchrdesgo

Active

Chrysocephalum apiculatum (Labill.) Steetz · Common everlasting

Peter Wicki-Freidl

2 records

Falstaff

Active

Pyrus communis L. · European pear

Lorenzo Rivalta^^^Marco Castagnoli^^^Sandro Sirri^^^Walther Faedi

3 records

GRUSALRP

Active

Salvia x sylvestris L. · Wood sage

de Gruyter Andre

2 records

Icing Sugar

Active

Salvia greggii A. Grey · Autumn sage

Richards Rodney William|Mansell Gamage, GB

2 records

Glamour

Active

Trifolium isthmocarpum Brot.

Fertiprado Sementes e Nutrientes Ltda.

4 records

Georgie Red

Active

Diplacus aurantiacus (Curtis) Jeps. · Bush monkeyflower

Trees Scott C

2 records

Inca

Active

Aechmea Ruiz et Pav. · Aechmea

Skotak, Jr. Chester

2 records

Gemma

Active

Prunus armeniaca L. · Apricot

Daniele Bassi^^^Stefano Foschi

3 records

Ficallinwhi

Active

Calibrachoa Cerv. · Calibrachoa

Miedema-Jorna Anita

2 records

Felice Light Blue

Active

Lavandula angustifolia Mill. · English lavender

P.P.M. van der Salm Holding B.V., L. Koning Beheer B.V.

2 records

Hilcara

Terminated

Dianthus caryophyllus L. · Carnation

HilverdaKooij B.V

2 records

Frycalm

Active

Rosa L. · Rose

Gareth R. Fryer

3 records

GCWOOD213

Terminated

Magnolia laevifolia (Y. W. Law & Y. F. Wu) Noot.

Glyn Church

2 records

HG 1412

Active

hybrids between Helleborus x ericsmithii B. Mathew and Helleborus x hybridus hort. ex Voss

Josef Heuger

2 records

Hercules

Active

Echeveria DC. · Echeveria

Handelskwekerij Ubink B.V.

2 records

HG 1426

Active

hybrids between Helleborus x ericsmithii B. Mathew and Helleborus x hybridus hort. ex Voss

Josef Heuger

2 records

Edvard

Active

Hedera helix L. · Common ivy

Tomas Lagerström

2 records

HAVIDW703

Active

Campanula isophylla Moretti · Italian bellflower

Theodorus C.L. Ten Have

2 records

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