iBloom™ Azure Skies™ Hydrangea Hydrangea macrophylla 'COF HM1' PP32054 iBloom™ Rock-N-Roll™ Hydrangea Hydrangea macrophylla 'COF HM3' PP32584 Azure Skies™ This remarkable reblooming hydrangea is sure to please! Azure-blue flowers shroud this plant in spring and will continue to bloom well into fall. Reaches 3 feet tall and wide. Excellent planted in mass. USDA Z5 3 ft. tall x 3 ft. wide Circle 100 Rock-N-Roll ™ With eye-candy appeal in spring, this reblooming hydrangea has masses of purplish-pink mophead flowers. Stems and flower buds are very cold hardy. Reaches 3 to 5 feet tall and wide. Excellent planted in mass. USDA Z4 3-5 ft. tall x 3-5 ft. wide