Own Root - All of our rose bushes at Heirloom Roses are own root, which means they will produce more blooms, be more hardy, and stay true to variety throughout their lifetimes, contrary to grafted roses. One Gallon - All of our rose plants are 12-16 months old and delivered in one gallon containers with rich soil. Hardiness Zones: 6-10 Moderately Fragrant & Repeat Blooming - Will bloom in flushes throughout the growing season. Approximate Size: 5' x 4' - This is the indefinite size of the rose plant when it reaches full maturity. Upon delivery, roses will be around 12-15 inches tall and may be partially defoliated to ensure plant health during shipping. All Heirloom Roses' rose bushes are own-root and approximately 12-15 inches tall. Recommended 6+ hours of direct sunlight.