What plant hardiness zone is Ronald

Ronald is located at Kittitas County, Washington (WA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Ronald is 6b by the USDA scale.

Coldest zone's winter temperature is −5 … 0 °F.

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

Ronald, Washington @ wikipedia.