frost-hardy

A closely related species, honey locust, is more frost-hardy but less desirable in other respects, though an excellent tree nevertheless.

Practical Forestry in the Pacific Northwest Protecting Existing Forests and Growing New Ones, from the Standpoint of the Public and That of the Lumberman, with an Outline of Technical Methods Edward Tyson Allen

This frost-hardy heavy bloomer is smothered in red and purple flowers from June through Thanksgiving.

The Seattle Times 2009

Texas sage, also known as Texas ranger, is a frost-hardy, sun-loving, low-water-use evergreen shrub that has blue-gray leaves and blooms in spring and summer, especially when the humidity rises or after it rains.

azcentral.com | news 2009

It is tolerant of dry conditions once established and is frost-hardy.

SFGate: Top News Stories Erle Nickel 2009

It is tolerant of dry conditions once established and is frost-hardy.

SFGate: Top News Stories 2009