I've tried growing a few different things up this arch, but they all seem to give up in the end. My latest attempt to get some greenery and shade is kiwifruit vines. After a few years they are growing really well and this year are covered in flowers. Unfortunately on closer examination the flowers are all coming from the male plant and therefore there won't be any kiwifruit produced this year, but there is hope for the future. I wonder how many years we have to wait until we get to sample some of our own homegrown kiwifruit... and if the vines will survive that long!