One plant can cover approximately 200 square feet at its largest size. Now it is a vigorous plant once established so make sure it has a little space. Climbing hydrangea vines can cover a large amount of surface area. Having your climbing hydrangea climb up your wall may be a good choice as long as you keep the plant from causing any damage. petiolaris are best planted in soil that has been amended with adequate amounts of organic matter, such as compost, leaf mold, or well-composted manure. Once your climbing hydrangea is well established, it should bloom every year. All of the plantâs energy is put into climbing or sprawling leaving no energy left for flowers to bloom. Yep, thereâs such a thing as a hydrangea vine that can be grown as a groundcover or trained to grow on a trellis or fence. Climbing hydrangea vines can grow to be exceptionally large, making them heavy. If not properly trimmed, they will start to grow as a ground cover. Will grow well in shaded, semi-shade and even sun. The climbing hydrangea (Hydrangea petiolaris) from the Hydrangeaceae family, grows on walls, facades, pergolas and fences and is an ornament in the garden with its fine white inflorescences. Common Name: Climbing Hydrangea. They will grow well in shade, partial shade and full sun. The first few years of growth are especially important because the plant is spending a large amount of energy in its effort to grow either vertically or horizontally. Native to Asia, Hydrangea anomala subsp. Although the climbing hydrangea will survive during the winter months, it may not respond well to a sudden frost. Simple layering works well for any shrubs or climbers with shoots that can be bent down to ground level. These shrubs will need to be trimmed yearly to ensure growth does not get out of hand. The climbing hydrangea does best in constantly moist soil, but it does not like heavily saturated soil; this translates to around one inch of water weekly. Vining plants, such as the climbing hydrangea, will cling on to the different rungs of the trellis, and will oftentimes weave their way through different sections for added support. When it comes to growing your climbing hydrangea vines on a trellis there are a few things to consider. petiolaris; paniculata, and arborescens, or smooth hydrangeas. Hydrangea petiolaris (Climbing Hydrangea) is a hardy climbing deciduous plant that uses its adventitious roots to grip to walls and fences and flowers from around June onward producing enormous white lacecap style flowers that can be almost 30cm (1ft long). Looks fantastic climbing up arbors, fences or the trunks of large trees. Pruning is particularly important if you have planted your climbing hydrangea vines on or near your house, as they can potentially do damage over time. The oldest, planted several years ago, is about 20' high. The climbing hydrangea ( Hydrangea anomala subsp. Sun burn for a plant is similar to a sunburn on a human. Carefree fast growing flowering vine adds a distinctive look. Oakleaf hydrangea (Hydrangea quercifolia) bloom best in areas with hot summers. There are too many to discuss here. If planting on a trellis-type structure, the vines will weave throughout the trellis for added support. The climbing hydrangea vines will attach to your exterior walls with their aerial roots, which cling to flat surfaces such as brick or wood. If you plant a climbing hydrangea in a location where it doesnât have access to any supporting structures, it will fold over on itself, creating an arched shrub of sorts. Will grow in fertile moist but well-drained soil. The saying, âslow and steady wins the raceâ holds true for the climbing hydrangea vine. Fertilizer with a high phosphorous count will work best for the climbing hydrangea as it will focus on the beautiful blooms.