Hi we are getting a patio at the moment and I am wondering how we can gain some privacy in our garden. I thought we could build a raised bed on the patio however we have been advised not to do this as it could leak soil onto the patio and ruin it. I originally wanted to plant clumping bamboo but it seems this isn't an option anymore. What sort of plants could we grown in pots on a trellis that would give some privacy? Or is there any other option? Thanks in advance