Kordeaux
ActiveRosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Variety traits
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.
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.
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Hydrangea paniculata Siebold · Panicled hydrangea
Schoemaker, Alex Frederik
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Rosa L. · Rose
LEX VOORN ROZENVEREDELING B.V.
Ilex crenata Thunb. · Japanese holly
Wansinck Barry
Nandina domestica Thunb. · Heavenly bamboo
Richard E Davis
Hydrangea paniculata Siebold · Panicled hydrangea
Schoemaker Alex Frederick
Hydrangea paniculata Siebold · Panicled hydrangea
Alex Schoemaker Living Creations Holding B.V.
Hydrangea paniculata Siebold · Panicled hydrangea
Schoemaker Alex Frederick
Echinacea Moench. · Coneflower
Blom Arie|3452 AR Vleuten, NL
Juniperus scopulorum Sarg.
Arie van Klaveren
Rosa L. · Rose
WILHELM-ALEXANDER KORDES
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
van Rosmalen Nick
Physocarpus opulifolius (L.) Maxim. · Ninebark
Schuch, Pavel
Tiarella L. · Foamflower
TERRA NOVA NURSERIES INC
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Hydrangea paniculata Siebold · Panicled hydrangea
Kolster Peter R.
Hydrangea paniculata Siebold · Panicled hydrangea
Lendert De Vos
Dianthus caryophyllus L. · Carnation
Rupp Judith
Rosa L. · Rose
Interplant Roses B.V
Lagerstroemia indica L. · Crape myrtle
Lagerstroemia S.A.R.L.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Lavandula angustifolia Mill. · English lavender
Priscilla Grace Kerley, David William Kerley, Timothy Edward Kerley