Hardiness and Rootstock of Roses
Many factors in addition to temperature can impact rose hardines such as planting location and depth, plant health and adequate winter protection. All of our 2-yr. old # 1 budded roses are grafted on Dr. Huey rootstock, selected for its vigor and non-invasive qualities. With the majority of budded roses, winter protection must be provided to ensure winter survival in zones colder than Zone 6. Roses specified "Select #1 own root" are grown from cuttings, so they have the ability to come back true-to-name if severe winter damages their tops. For these roses, we list the zone at which the crown of the plant is reliably winter hardy.