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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.

Salmon Princess

Withdrawn

Erica x darleyensis Bean · Darley heath

Kurt Kramer

1 record

Rosy Wave

Terminated

Petunia Juss. · Petunia

KIRIN BREWERY CO LTD

1 record

Rosamunde

Active

Calluna vulgaris (L.) Hull · Common heather

Kurt Kramer

1 record

Sine

Active

Vaccinium L. · Bilberry

Maatalouden tutkimuskeskus (MTTK) (later: Maa- ja elintarviketaouden tutkimuskeskus (MTT)/ Present Luonnonvarakeskus (Luke))

1 record

Silver Dormouse

Active

Brachyglottis Forst. & Forst. · Brachyglottis

David Ralph Tristram

1 record

Sabina

Terminated

Chrysanthemum L. · Chrysanthemum

Pieters Dirk

1 record

Samit

Active

Salix repens L. · Creeping willow

Birkholm Planteskole A/S

1 record

Rebus 195

Active

Prunus persica (L.) Batsch · Peach

Daniele Bassi

2 records

Serenade

Withdrawn

Argyranthemum frutescens (L.) Sch. Bip. · Marguerite daisy

L.M.S. ApS

1 record

September King

Withdrawn

Prunus salicina Lindl. · Japanese plum

CHAMBERLIN TOM O.

2 records

Red Angel

Terminated

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Frauke Engel

1 record

S251

Terminated

Solanum lycopersicum L. · Tomato

JAMES R.MYERS

1 record

Robpatsun

Terminated

Lantana L. · Lantana

Robert Jackson Roberson

1 record

Princess Leila

Terminated

Dianthus caryophyllus L. · Carnation

La Villetta S.R.L.

1 record

RICHGAIN

Terminated

Magnolia L. · Magnolia

Richard Baines

1 record

Rebus 038

Active

Prunus persica (L.) Batsch · Peach

Daniele Bassi

2 records

RUYLAS1704

Active

Lavandula x cadevallii Sennen

Kurt de Ruyver

1 record

PSDL11101

Terminated

Campanula poscharskyana Degen · Trailing bellflower

Peter van de Pol

1 record

Prunotto

Terminated

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

1 record

Purple Leia

Withdrawn

Veronica spicata L. · Spiked speedwell

Hans A. Hansen

1 record

Rothlav

Terminated

Sutera Roth · Sutera

REINHARD W.ROTHER

1 record

POULCAS050

Withdrawn

Rosa L. · Rose

Poulsen Roser A/S

1 record

ROED AROMA

Terminated

Malus Mill. · Apple

SVERIGES LANTBRUKSUNIVERSITÄTET

2 records

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