Posted: 04/02/2015 at 15:43
Hi Minos, intertwining hawthorn would be very painful but perhaps that's not what he meant
I don't think you'd have a problem with willow roots if you kept it back to hedge size but there is a but. Either you cut it back every year to get those whippy growth and weave them in. Or you don't cut it back and those intertwined branches get thicker and thicker and eventually look rather solid and lacking the bright colours of young growth.