Posted: 13/01/2012 at 16:56
Adam, I strongly disagree with your tip!
Wisterias grow quite quickly so every year ALL the ties should be replaced. Never use wire ties of any sort, use the thin green twine and have it in your pocket precut to about 10cms length. In your other pocket have some cut to about 20cms for thicker stems.
Put the twine round the back of the wire support, then cross it before tying in a double knot.
Do not ever wind stems round and round wires, trellis, etc. as it will either strangle itself or break the trellis!
See my 250ft long wisteria at www.wickhamplacefarm.co.uk