We have perfected the art of grafting roses onto standards (straight, strong trunks) here at Jackson & Perkins. It is one of our signature processes, and we are pleased to offer our tree-form roses to you in two sizes: 24-inch, which we call patio roses, and 36-inch. For the 24-inch patio roses, we graft two rose bushes atop a single standard, creating a dense ball of blooms for garden or container. For the 36-inch version, we graft FOUR roses! You can see why, with our proprietary rootstock developed just for these roses, our two sizes, and our generosity with the graft, Jackson & Perkins standard-form roses are synonymous with quality, beauty, and durability.