What plant hardiness zone is Cathcart

Cathcart is located at Snohomish County, Washington (WA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Cathcart 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.

Cathcart, Washington @ wikipedia.