One Gallon Blooming size plants Stunning new release from French Hybridizers. This beauty has a color hue (Blue tones) that are totally unique. In the flower world, the color closely resembles the forget-me-not. Grows to 4 x 4 feet. Always easy to grow, plant your Hydrangea in a spot with moist soil and morning sun, afternoon shade. Prune for size only, this Hydrangea blooms on old wood. Add a half a cup of garden sulfur once a year to maintain blue tones. Cold hardy to Zone 6.