Purple Kiss
ActivePhlox paniculata L. · Garden phlox
Verschoor Jan|Haarlem, NL
Variety traits
Winter hardiness
Winter hardiness is a complex indicator of a variety's ability to remain viable throughout the winter and early spring periods, including resistance to frost and other environmental stress factors.
Mentioned in descriptions 27 261 varieties reference book.
Winter hardiness is a complex plant characteristic that includes resistance to freezing, smothering, waterlogging, frost heaving, and winter desiccation. Unlike frost resistance, which is limited to tolerance of low temperatures, winter hardiness takes into account the entire spectrum of adverse effects that lead to plant death or damage during the cold period.
The winter hardiness of a variety is evaluated using methods of field assessment of crop conditions after winter, employing scoring scales, as well as laboratory studies. The latter include direct freezing of plant monoliths, biochemical analyses of sugar accumulation, verification of the viability of the tillering node, and the use of genetic markers to determine resistance.
The level of winter hardiness depends on the genetic potential of the variety, the plant's ability to harden, agronomic cultivation practices, and the microclimate characteristics of a specific site. When choosing a variety, one should focus on regionalized forms, bearing in mind that the resistance indicator is relative and requires comparison with local standards and growing conditions.
Breakdown by crop
Winter Hardiness of Roses
555
Winter hardiness of common wheat
220
Winter hardiness of apple trees
188
Winter Hardiness — Hydrangea macrophylla
187
Pear Winter Hardiness
123
Winter hardiness — perennial ryegrass
120
Winter Hardiness of Lily
91
Winter hardiness of winter rapeseed
81
Peach winter hardiness
71
Plum Winter Hardiness
65
Winter Hardiness of Clematis
61
Grapevine Winter Hardiness
56
Winter hardiness of winter barley
56
Winter hardiness — garden strawberry
52
Winter hardiness of sweet cherry
48
Tulip winter hardiness
42
Heuchera winter hardiness
40
Winter Hardiness of Alfalfa
39
Chrysanthemum winter hardiness
39
Winter hardiness of triticale
36
Winter Hardiness of Apple
36
Winter hardiness of Hydrangea serrata
36
Grapevine Winter Hardiness
35
Winter hardiness of apricot
35
Found in these crops
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.
Poulcot014
ActiveRosa L. · Rose
Poulsen Roser A/S
Poulcot001
ActiveRosa L. · Rose
Poulsen Roser A/S
Prince of Silver
ActiveHeuchera L. · Coral Flower
WYNEX
Poulcas043
ActiveRosa L. · Rose
Poulsen Roser A/S
Poulac014
ActiveRosa L. · Rose
Poulsen Roser A/S
POULac007
ActiveRosa L. · Rose
Poulsen Roser A/S
Rockred
ActiveSaxifraga x arendsii Engl. · Arends saxifrage
Syngenta Seeds B.V.
Richmond
ActivePhleum pratense L. · Timothy grass
Limagrain UK
Real Glory
ActiveLeucanthemum x superbum (Bergmans ex J. W. Ingram) D. H. Kent · Shasta daisy
Lintott Keith George / Real Charles Richard
Poulpar089
ActiveRosa L. · Rose
Poulsen Roser A/S
Poultc018
ActiveRosa L. · Rose
Poulsen Roser A/S
Poulren032
ActiveRosa L. · Rose
Poulsen Roser A/S
Poulren024
ActiveRosa L. · Rose
Poulsen Roser A/S
Poulnap007
ActiveRosa L. · Rose
Poulsen Roser A/S
Poulpar112
ActiveRosa L. · Rose
Poulsen Roser A/S
Puru
Protection expiredVaccinium L. · Bilberry
Wood, Franklin H.|Hamilton, New Zealand
Poulpar066
ActiveRosa L. · Rose
Poulsen Roser A/S
Red Heart
ActivePrunus salicina Lindl. · Japanese plum
Red Dream
ActiveBerberis thunbergii DC. · Japanese barberry
Michal Andrusiv
RC Big Rock
ActivePanicum virgatum L. · Switchgrass
Roger Samson
Poulcas048
ActiveRosa L. · Rose
Poulsen Roser A/S
Poulcas032
ActiveRosa L. · Rose
Poulsen Roser A/S
Peppermint
ActiveHeuchera L. · Coral Flower
Janet N. Egger