I don't know if you remember when I tried to propagate a Virginia Creeper by layering a shoot up through a plastic pot filled with compost?
I was as pleased as punch when the leaves opened in the spring and everything was going in the right direction but unbeknown to me, someone had lifted the pot up to either move it or look at it and severed the stem that was connecting the layered plant to the host.
Consequently, without a decent root structure, the layer died (I was hoping to have replanted it against another part of the house well before the end of the summer to establish the plant in time for winter and the next season).
So the season was effectively wasted and by the time the weather had warmed up and guests arrived at the house the opportunity was lost.
However, in late summer I clipped a couple of stems of semi ripened growth from leading shoots and literally plonked them in water.
I think that was about six weeks maybe two months ago and whilst the two cuttings do not have any roots, callouses have formed at the nodes on the end of the stem.
The cuttings are amazingly happy and I now have the dilemma; do I pot them on with some rooting compound before the seasons end and hope that they will over winter? Do I leave them in the water and hope that the stems do not rot (my least favourite choice) or do I seek out a heated propagator and force some roots before the season becomes dormant?
There is one option which is probably not a sound one but I could try and freeze the shoots and simulate winter and hope that dormancy will ensure freshness for forcing new roots in the spring (if I had another two shoots I think I would try this method).
I realise now that I should have taken a handful of cuttings to give me more options but it is easy to be wise after the event.
Incidentally, the Virginia Creeper - Parthenocissus tricuspidata veitchii - was planted just last spring (April 2007) and has now reached six metres.
Further reading: How to layer a virginia creeper