A hybrid tea rose has grown vigorously all summer, but has yet to bloom. A. Hybrid tea roses are propagated by budding. If little or no winter protection is provided, the canes may die back to the bud union.
New growth originating from below the union is from the rootstock portion of the plant.
Growth originating from the rootstock is extremely vigorous, but usually does not bloom. Nonblooming plants should be dug and discarded.