Plant Snowcicle Hydrangea in well-draining, fertile soil, ensuring it receives morning sun and afternoon shade for optimal growth. Water consistently, keeping the soil evenly moist but not waterlogged. Prune in late winter or early spring to maintain shape and encourage new blooms. Apply a balanced, slow-release fertilizer in early spring to support vigorous growth and flowering. Avoid over-fertilizing to prevent lush foliage at the expense of blooms.