Most references say to root non-flowering shoots only. Why? Has anyone tried the horizontal flowering shoots? With Hedera helix, I'm told, rooting horizontal shoots yields a shrubby rather than viney plant. Could this be true with H. anomala sp. petiolaris?
Climbing Hydrangea cuttings
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.
June, July or August : To get a rooted cutting, find NON flowering branch that is long enough to be pegged onto the soil, Non flowering branches have not used up energy making flowers therefore the Non flowering stem will be more ready to form roots but by removing flowers will still give you good material for rooting. make a horse shoe shaped peg made of wire or bend a wire coat hanger and use this to make pegs, scrape away some soil and make a hollow, fill the hallow with water and peg the branch into the hollow, cover with soil leaving about 8 - 12 inches out from soil, stick a cane into the soil where the extra length comes out from the soil and gently bend the extra part up wards onto a cane, this is to prevent the whole branch from forming roots, a few months later when the cutting has made enough roots, you then cut it away from the parent plant, remember to cut the part closest to the parent plant and don't cut OFF the upright stem on the cane, ha, ha, ha, I've done just that and wondered where my cutting had gone, it's still under the soil as I've cut the wrong part. If you cant find long enough stems to peg into the soil then raise a pot with compost and peg the cutting into this but, you must water this as often as you would a pot plant till rooted.
Set the new cutting / cuttings into nice new compost with added animal manure, shop bought compost with added plant feed, and water well, make sure in the hot summer the cuttings are in shade and don't let dry out, once the cuttings have settled and are growing new leaves then pinch out the growing tip to help the plant produce nice new side shoots, these plants can grow almost anywhere and even on a north wall, the best thing about this climber is that it does not require a trellis or frame to climb up, it has tiny little stickers that grip / cling to whatever surface it grows against.
These plants like a nice rich growing medium so add compost/ manure to the planting soil when planting in final position.
Hope all this helps. WeeNel.
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