To grow hydrangea from cuttings, start by removing all of the leaves below the top leaf pair on your cutting. The climbing Hydrangea is one of the easiest plants to take cuttings from, don't know why anyone would think that a climbing plant would turn into a scrubby shape, it is a climber by nature and if you wanted it to be a shrub, you would require to constantly cut the long clinging stems/branches to maintain a shrub shape, personally there are better shrub Hydrangea's. Hydrangea cuttings stage by stage: Remove a cutting with about 2 or 3 leaf joints from the top. Climbing hydrangea can also be used as ground covers, and they will take root where their suckers make contact with the ground. This big vine produces large clusters of white flowers held against rich, dark green foliage. The vines can be slow to get established -- so be patient with them. Then, stick the cut end of the cutting into a small pot filled with 1 part potting mix and 1 part sand or vermiculite. I find it is best to take them in early summer, around July to ensure they get plenty of time to get a good head start. Climbing hydrangeas are easy to grow from softwood, semi-ripe or hardwood cuttings at any time between May and August, but the easiest and most successful propagation technique is layering. Place the pot in partial sunlight and water the cutting regularly so the soil is always moist but not soggy. Propagating Hydrangea Cuttings.
Climbing hydrangeas are one of the easiest plants to propagate from stem cuttings. Cut the stem just below a leaf joint and remove the lowest leaves to produce a bare stem that can be inserted into the cutting compost. This helps the plant to spread and fill in an area, cutting down on weed growth. Climbing Hydrangea Propagation. A full-grown climbing hydrangea in bloom can take your breath away. Because it is a long-lived and powerful vine, a strong trellis or support is recommended. Take your cuttings in late summer, and by spring you'll have a whole new crop of climbing hydrangeas to plant in your garden. Climbing hydrangeas grow by producing aerial roots that grow into walls, fences, or even up the side of a large tree.
Hydrangeas cuttings are generally easy to take but are slow to root, so it can be a problem getting them to survive over-winter unless they have rooted really well. It can tolerate the heat in zone 8 if it is protected from the hottest afternoon sun. Some gardeners make use of the plant's white flowers in moon gardens. The climbing hydrangea is appropriate for planting in USDA zones 4 through 7. To successfully transplant a climbing hydrangea, follow the correct procedure.