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Quartz Hill, CA (Zone 8b)
Feb 22, 2016 5:55 PM CST
|I was wondering the best way to root Wisteria dormant cuttings please? Also how long and what part of the branch should I use? It is my neighbors vines and I was told that this is the best time to root them, when they are dormant? I do have rooting hormone powder if need be? It is a beautiful purple Wisteria but they don't know what kind it is. Thanks for any advice you can give me.|
Feb 22, 2016 9:22 PM CST
|I think that this time of year, you would treat the cuttings like grape cuttings. We used to root grapes by taking a cutting with a couple nodes that is a couple inches long, use rooting hormone and stick them in the ground (or a pot). Leave just one node above the soil line and at least one below. Cover them with a canning jar. The problem I can see with this is that the leaves start to grow before roots form and then its a race to see if the stored reserve in the stems can keep the leaves alive long enough to grow roots.
Usually, wisteria are grown from softwood cuttings taken in the spring or early summer before the new growth starts to harden. Use 3 inch cuttings taken from the less vigorous sideshoots (shoots with closely spaced nodes). Use rooting hormone. It will still take a couple months to root.
The very best way is layering. Find a healthy trailing shoot lying on the ground. Trim off all the leaves and any side shoots. Scratch the stem just behind each node and apply rooting hormone then pin those spots down with a wire staple. This system works well because the parent plant is still providing nutrients. You should see the nodes developing little plants but don't separate them from the parent plant until a good rooting system also develops.
This is a several month project whatever method you use.
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