Hardiness???

From Certified Roses web page:

An English-type shrub from this side of the pond with a color and perfume that would make the Brits envious. Grape to lavender tones blended with a reverse of creamy white, this tall, bushy plant can be trained as a Climber in mild climates. Clusters of full, old-fashioned flowers bow down on graceful arching stems to invite you to take in the intense citrus blossom and rose aroma.

Variety Name:Lavender Crush™, cv. 'TEXmourug'
Rose Type:Shrub
Flower Color:Multi-Color
Patent Number:PPAF
Height/Habit:Tall, 5'-7'
Average Size:Tall
Blooms/Petals:Fully double, cuppy & old fashioned
Foliage:Rich grey-green
Fragrance:Strong
Sun Exposure:Full Sun
Parentage:Seedling x seedling by Certified Roses