The Purple Tiger rose has a reputation for being a slow grower and my experience with it bears that out, but with its astonishing and unique color and patterning, it can be worth the wait. So it has been for me.
After three years in the ground - allowing that a year of that was recovering from Pot Hell - it is now 2 feet tall, 2 1/2 feet wide and loaded with small, nicely-shaped blooms. The color is a deep, rich purple with white patterning that varies wildly. It's a small dynamo, and a wild and lovely addition to my garden.