Variety traits

Frost Resistance of Acer palmatum Thunb.

Acer palmatum Thunb.

The frost resistance of Acer palmatum Thunb. corresponds to USDA zone 6b, with critical temperatures ranging from -17.8°C to -20.5°C. The species is sensitive to late spring frosts due to early bud break and requires well-drained soil for successful overwintering.

In the reference 4 varieties crop Japanese maple, where this is mentioned in the description.

Japanese maple exhibits frost resistance ranging from USDA zones 5–8, with zone 6b considered optimal. Critical winter temperatures for the species are between -17.8°C and -20.5°C. Young specimens are significantly more sensitive to low temperatures and require mandatory protection in the first years after planting.

An important factor in hardiness is the physiological state of the plant: early spring leaf emergence makes the crop vulnerable to late frosts. Cold tolerance also depends on soil conditions; hardiness decreases in waterlogged and compacted soils. To expand the cultivation range, hybrids such as Acer palmatum × pseudosieboldianum, which possess increased cold hardiness, are utilized.

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

Sources8

Varieties of Japanese maple 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.