What plant hardiness zone is Prairie Ridge

Prairie Ridge is located at Pierce County, Washington (WA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Prairie Ridge is 8b by the USDA scale.

Coldest zone's winter temperature is +15 … +20 °F.

Plants of 8b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 8b USDA.

Prairie Ridge, Washington @ wikipedia.