I have just planted a couple of "Star Performer" climbing roses next to
a wall of my house in order that these can climb up a trellis that I
have attached to the wall. When I was digging the holes I found a gas
pipe directly underneath. Do I need to worry at all about the roots
potentially damaging the gas pipe as the roses grow? The reason I ask is
that I understand that tree roots can sometimes cause damage to
underground pipes due to swelling.