What plant hardiness zone is Mount Rainier Natl Park

Mount Rainier Natl Park is located at Pierce County, Washington (WA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Mount Rainier Natl Park is 6a by the USDA scale.

Coldest zone's winter temperature is −10 … -5 °F.

Plants of 6a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6a USDA.