Variety traits

Frost resistance of ×Heucherella h. r. wehrh.

x Heucherella H. R. Wehrh.

The frost resistance of heucherella is determined by the USDA hardiness zone scale and is characterized by indicators for zones 3 and 4, which corresponds to high winter hardiness at temperatures down to -40 °С.

In the reference 5 varieties crop Foamy bells, where this is mentioned in the description.

The assessment of heucherella frost resistance is based on the international USDA hardiness zone scale, where the unit of measurement is the range of minimum temperatures characteristic of a specific zone. For a number of cultivars used in landscaping, values have been established for frost hardiness zone 4, which covers temperatures from –34 to –29 °С, and zone 3, which covers the range from –40 to –34 °С.

These indicators are classified as high winter hardiness and are a key criterion when selecting cultivars for open-ground cultivation in regions with a temperate climate. Compliance with zones 3 or 4 allows plants to successfully overwinter in gardens and park areas without the need for complex covering structures.

General information about the subject — on the page Frost hardiness.

Sources4

Varieties of Foamy bells mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.