It is a rare rose bred after 1900 that can grow on its own roots, even if it is not being transplanted over and over. I bought Portlandia as a band from Heirloom Roses three years ago and I moved it last year. Despite the fact that it is growing on its own roots, that it grows in miserably thin soil, and that it keeps getting dug up and moved, each year it just gets bigger and better. One might wish for a bit more delicacy in the beauty of its blossoms; but in terms of vigor and disease resistance, this is a highly serviceable rose, capable of bringing color and interest to a garden without being finicky.