What plant hardiness zone is Upper Montclair

Upper Montclair is located at Essex County, New Jersey (NJ), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Upper Montclair 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.

Upper Montclair, New Jersey @ wikipedia.