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 purple rose plants are 12-16 months old and delivered in one gallon containers with rich soil. Hardiness Zones: 5-9 Moderately Fragrant & Continual Blooming - Will bloom continually throughout the growing season. Approximate Size: 4-5' x 3-4' - This is the indefinite size of the Celestial Night rose 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. Subject to Amazon's 30 day warranty. Void if granular fertilizer has been used. An offspring of Ebb Tide x Grande Dame, Celestial Night is a mystical shade of deep, plum purple and produces lush, cupped, old-fashioned blooms, with 41+ petals, perfect for the garden and vase. Her incredible full flowering coupled with great disease resistance gives you a rose that is sky high above its competition. Celestial Night is a garden star!