Skip to content
agronom.cc cultivar database

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.

Ovasdino

Active

Astroloba spiralis (L.) Uitewaal

Ovata B.V.

4 records

POULREN027

Active

Rosa L. · Rose

Poulsen Roser A/S

3 records

Perpa

Active

Hesperaloe parviflora (Torr.) J. M. Coult. · red hesperaloe

Ronald Gass

3 records

Pink Elf

Active

Epimedium L. · Barrenwort

White Anthony Robin|Hampshire SO24 0NL, GB

3 records

Osage

Active

Rubus L. subg. Rubus · Blackberry

JOHN REUBEN CLARK

4 records

Pink Pearls

Active

Heuchera L. · Coral Flower

Sandrine Delabroye

3 records

NC2014-5

Active

Cercis canadensis L. · Eastern redbud

Werner Dennis,Kenealy Leanne M.

3 records

Neptunes Gold

Active

Eryngium x zabelii Christ ex Bergmans

Neil Alcock

4 records

Minfor6

Active

Forsythia x intermedia Zabel · Border forsythia

Pineau Patrick

3 records

Merlot

Terminated

Phormium J.R. et G. Forst. · New Zealand flax

Lyndale Nurseries Ltd.

3 records

Meilowmye

Active

Rosa L. · Rose

MEILLAND ALAIN ANTOINE

3 records

Lime Ruffles

Active

Heuchera L. · Coral Flower

Janet N. Egger

3 records

Lepfuh

Active

Fuchsia L. · Fuchsia

José Leprêtre

3 records

Little Princess

Active

Anemone hupehensis Lemoine · Japanese anemone

Tonies Hubertus Josephus|Noordwijkerhout, NL

3 records

NK2021

Active

Hosta Tratt. · Hosta

NINJA KRAMER

3 records

Mount Everest

Active

Curio ficoides (L.) P. V. Heath

Lammert Koning

3 records

Myomark

Active

Myosotis L. · Forget-me-not

KOEHLER DIETER

3 records

Melody

Active

Geranium cinereum Cav. · Grey cranesbill

Lowe, Carl Marius

3 records

Korparofe

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

3 records

Kormobada

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

3 records

Kolmatemta

Active

Symphoricarpos x doorenbosii Krüssm. · Coralberry

Jan de Jong

3 records

Jump to page 15 18 35 36 54 72 90 108 125