I just bought a
|In a quick search I did find several references to the rose David Barber -- a groundcover rose with double, white flowers and growing to about 16 to 18 inches tall and four feet across, good disease resistance, red stems, and winter hardy to approximately ten below zero Farenheit. (Your zip code places you in USDA winter hardiness zone 4, or substantially colder.)
The groundcover roses tend to be initially upright and then scramble and spread outward as they elongate, so the shape in the container is not really indicative of what it will eventually do in the garden. Also, they are commonly planted in groups or "drifts" of 3 or 5 or more so their canes intermingle to create the impression of one larger overall mass planting.
As with all roses, these need full direct sun all day long and evenly moist yet well drained soil. (Do not plant it in a constantly moist location or in a low spot where water collects after a rain.)