Climbing hydrangea is a vigorous perennial vine that clings and climbs to almost any surface. It requires a sturdy structure and will cover trees, walls, rocks, and pergolas, and can reach 30–40 feet tall. ‘Mirranda’ produces fragrant white flower clusters that bloom from May to June and again from July to August, and fruit that ripens from September to October. Its variegated, heart-shaped, dark green leaves with yellow margins fade to creamy white as summer progresses. It closely resembles Hydrangea anomala ssp.petiolaris 'Firefly'. Both hydrangeas have yellow leaf margins and they are difficult to tell apart. Some authorities consider them to be synonymous. 'Firefly' is a cultivar native to mountain slopes in China, and the Himalayas. The subspecies name petiolaris refers to the long petioles of this plant.