What to do with a sycamore 'hedge'?
In decades past the previous owner of our property decided that sycamore would make good hedging(!). Now, if it weren't for some oddments of holly bushes and loads of very mature ivy filling up the gaps, basically what we have is a row of pollarded sycamore trees. There are a few younger sycamore stems growing from the base so is it OK to try pruning them to encourage some bushiness? Any suggestions would be welcome (other than 'get rid of them and start again'!). Thank you.