Propagating Climbing Hydrangea

greenguy1(z7 Maryland)July 19, 2008

My neighbor has offered me cuttings of climbing hydrangea - he is selling the house, so I don't have the option of weighting a stem down with a rock until it roots. Will the holdfast roots that are holding the hydrangea stems to the house (lots of new growth with pliable green/white holdfasts) do the job if I put the cuttings in a glass of water or a pot of growing medium?


- Steve

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If you can go rummage around the plant yourself see if there are branghes close to the ground. These may already have real roots and will transplant easily. I transplanted my own climbing hydrangea this spring and got three potfuls of new young plants from branches that had layered naturally. I am not sure if the upper branches will root as easily but it is worth a try.

    Bookmark   July 19, 2008 at 11:24AM
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morz8(Washington Coast Z8b)

Climbing hydrangea, propagation :

"Hydrangea anomala ssp. petiolaris is more difficult to root than h. macrophylla especially after the wood has ripened. Non-flowering shoots of soft wood have root initials along the stem that serve as aerial roots to enable the vine to cling to a vertical support. These shoots should be placed in a well-drained rooting medium and roots will develop at the site of the initials."

    Bookmark   July 19, 2008 at 6:49PM
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greenguy1(z7 Maryland)

Thanks, both of you. I will check to see if there are some branches already rooted, and certainly (now) try to root some of the soft branches.

- Steve

    Bookmark   July 20, 2008 at 7:12AM
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Of course, already rooted brabches will be good and I'm sure you'll find plenty of them, but just in case you don't here is the method which I used in the past with 100% success.
Find a 12-15" long branch/stem and cut it the way that you'll have some old AND new growth on it. It should be pliable enough to make a loop out of the old wood.
Make a loop from the bottom part of the cutting, but leave at least 6-7" of new wood free. Place the loop at the bottom of container, fill by potting medium, but let 3-4" of the soft wood sticking out. Water and put in full shade.
That's it. In 2-3 weeks it will be rooted.

    Bookmark   July 20, 2008 at 11:05AM
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greenguy1(z7 Maryland)

Very interesting. What is the purpose of making a loop?

- Steve

    Bookmark   July 21, 2008 at 11:18AM
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To have as many pair of buds as possible buried in the soil.
If you plant cutting straight up number of buds in a soil will be limited by the height of container. By making a loop you'll be increasing number of buds under the soil thus roots will fill the container faster and plant will be ready for open ground sooner.

    Bookmark   July 21, 2008 at 2:46PM
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queeenbee(Z5 CANADA)

my hydrangea was growing on my wall quite well however, we had a terrible storm and it fell off the wall. It did not split or anything but I don't know it tying it up ( as I have for now) will work as the air roots ripped off the wall and not sure if it will grow new ones on old wood
Hate to have to lose nearly half of the whole plant
any suggestions please

    Bookmark   June 10, 2013 at 9:42PM
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