Variety traits

Frost hardiness

Frost hardiness is the genetically determined ability of a plant to withstand exposure to sub-zero temperatures without tissue damage. This indicator reflects the critical temperature threshold beyond which the plant dies.

Mentioned in descriptions 11 978 varieties reference book.

Frost hardiness represents the ability of a plant organism to resist the impact of low sub-zero temperatures. It determines the critical threshold above which plant tissues undergo irreversible damage or death. Unlike overall winter hardiness, which also accounts for damping-off and the effects of thaws, frost hardiness focuses specifically on the cellular response to cold exposure.

This trait is genetically determined; however, its expression depends on the physiological state of the plant and the dynamics of external conditions. Frost hardiness is not a constant value: it increases during the period of deep winter dormancy and gradually decreases towards spring, as the plant loses its ability to resist cold due to dehardening.

The evaluation of frost hardiness during variety testing is conducted through laboratory freezing in controlled conditions or through long-term field observations of crop survival. For variety comparison, scoring scales, percentage of survival, or the determination of minimum permissible temperatures in degrees Celsius are used. Maximum realization of the innate genetic potential for frost hardiness is ensured by optimal sowing dates and adequate phosphorus-potassium fertilization in the autumn.

Sources10

Breakdown by crop

Frost resistance of roses 263 Frost Resistance — Hydrangea macrophylla 162 Grapevine Cold Hardiness 152 Lily Frost Hardiness 106 Apple Frost Resistance 84 Grapevine Cold Hardiness 78 Clematis Frost Resistance 71 Tulip frost resistance 64 Peach frost hardiness 52 Frost resistance — soft wheat 44 Frost Hardiness of Rhododendron 36 Frost resistance of Heuchera 36 Frost resistance of common heather 30 Frost Hardiness of Zantedeschia 29 Pear frost resistance 24 Frost Hardiness of Sweet Cherry 24 Apple Frost Resistance 24 Gladiolus frost resistance 24 Cold hardiness of fig 24 Chrysanthemum Frost Resistance 21 Plum Frost Resistance 19 Apricot frost resistance 19 Frost resistance — garden strawberry 19 Blueberry frost resistance 18

Found in these crops

Grapevine 301 Rose 193 Lily 150 Common grape vine 142 Apple 119 Tulip 112 Bigleaf hydrangea 82 Clematis 66 Peach 63 Bread wheat 56 Azalea 44 Highbush blueberry 42

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.

Lemon and Lime

Active

Ceanothus L. · Ceanothus

Linda Price

2 records

Kudian

Active

Campsis Lour. · Trumpet Flower

Hendricus J.M. Kuijf

2 records

KORsineo

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

2 records

KLEDG20336

Active

Dianthus caryophyllus L. x Dianthus gratianopolitanus Vill.

Thiede Lena

2 records

Kibengo

Terminated

Chrysanthemum pacificum Nakai · Pacific chrysanthemum

Andreas Niederländer

2 records

Hot Stuff

Active

Hylotelephium spectabile (Boreau) H. Ohba · Ice plant

Gossett Gary J.|Portland, OR, US

2 records

JWW4

Active

Cercidiphyllum japonicum Siebold & Zucc. · katsura-tree

Jan-Willem Wezelenburg Boskoop B.V.

2 records

Intertrorats

Terminated

Rosa L. · Rose

Interplant Roses B.V

2 records

Kolmamon

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Kolster Holding B.V.

2 records

Inov205

Active

Lonicera periclymenum L. · Woodbine

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Saphinov S.N.C.

2 records

ILLUBOLWI

Active

Skimmia japonica Thunb. · Japanese skimmia

Albert L.C. Bolwijn

2 records

Juna

Active

Prunus domestica L. · European plum

Walter Hartmann

3 records

Hifla

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Roy Robin van Dijk

2 records

Korfirona

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

2 records

JFS 6SJ

Active

Styrax japonicus Siebold & Zucc. · Japanese snowbell

Warren Keith S.,Meacham Guy E.

2 records

Huhe01

Active

Hemerocallis L. · Daylily

van 't Hul Michel

2 records

HP217904

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Hydrangea Breeders Association B.V.

2 records

Isaura Yellow

Active

Chrysanthemum L. · Chrysanthemum

Johan David

2 records

HUIDAN

Active

Campsis x tagliabuana (Vis.) Rehder · Hybrid trumpet vine

Huisman Boomkwekerij B.V.

2 records

Hot Lava

Active

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

HARINI KORLIPARA

2 records

HAOPR012

Active

Hydrangea aspera Buch.-Ham. ex D. Don · Rough-leaved hydrangea

Plant Select N.V.

3 records

Hachapp

Active

Dasiphora fruticosa (L.) Rydb. subsp. fruticosa · Shrubby cinquefoil

Holger Hachmann

2 records

Hopleys

Active

Abelia x grandiflora Rehder · Glossy abelia

AUBREY D. BARKER

2 records

GRHP08

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Guido Rouwette

2 records

1 2 ... 41 42 43 44 45 46 47 ... 125 126 Next

Jump to page 18 34 36 54 72 90 108

Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

All terms →

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.