What is the proper planting depth when planting hybrid tea roses?
Modern roses, such as hybrid tea, grandiflora, and floribunda roses, are propagated by budding. A single bud is removed from the desired variety and inserted onto a hardy rootstock. The bud union (the knob-like swelling at the base of the canes) is sensitive to extreme cold and rapid temperature changes in winter. Modern roses are essentially destroyed if all growth above the bud union is destroyed in winter. When planting hybrid tea, grandiflora, and floribunda roses, the bud union should be positioned 2 to 3 inches below the soil surface to protect the bud union and lower portions of the canes from winter damage.