The one issue with this plant … Climbing hydrangea has a bad reputation as a slowpoke and a thug, but it is anything but. The specific epithet comes from the Greek word anomalas, which refers to the vine-like plant habit. This is natural, and part of the charm of the plant. petiolaris. And it's a plant you should know. If your soil needs improvement, dig in a generous amount of compost before planting. Feed the plant in late winter or early spring, just before new leav… In areas with hot summers, provide some afternoon shade. It has small aerial roots on the stems that help it cling on, though in the garden it is not as reliably self-supporting as some other climbers, so it is generally given additional help with wires and plant … The vines commonly don't bloom until they are three to five years old. A climbing hydrangea will start to set its buds for next year within a few short weeks of initial flowering, so any cutting back later on will reduce your flower count next year. The plants are hardy in USDA plant hardiness zones 5 through 7. Light. Pruning. Climbing hydrangeas need a rich, moist soil that is well-drained. When growing climbing hydrangeas against a wall, choose a northern or eastern exposure. Grow climbing hydrangea plants purchased from a local garden center in spring and plant after all danger of frost has passed. Aim for late spring, well after any danger of frost has passed, or early fall, when night temperatures usher in cooler air. If you garden in a region where the ground freezes, get plants into the ground at least six weeks prior to fall’s first killing frost. Climbing hydrangeas. Climbing hydrangea is one of the few hardy flowering vines that tolerate shade. This helps the plant to spread and fill in an area, cutting down on weed growth. You can also plant in summer as long as the plant stays well watered. Pruning. Plant in a … Soil, Feed, and Water. Climbing hydrangea can also be used as ground covers, and they will take root where their suckers make contact with the ground. How to Grow a Climbing Hydrangea. Some gardeners make use of the plant's white flowers in moon gardens. The most popular and well-known climbing hydrangea is Hydrangea anomala subsp. The genus name Hydrangea comes from hydor meaning water and aggeion meaning vessel, referring to its cup-like capsular fruit. The subspecies name is in reference to the long petioles of this plant. So, when is the best time to plant hydrangeas? Though slow growing to start with, it is a vigorous climber that can cover … Temperature and Humidity. Growing climbing hydrangeas is easy. Happily growing in shade, this vine will climb and climb. The vine grows well in full sun or partial shade. Climbing hydrangea is an informal, three-dimensional vine that often has side shoots growing in several directions. The climbing hydrangea is a deciduous vine from the woodlands of Japan, Korea and Siberia, where it grows up trees and across rock faces.