I've just put up a trellis at the end of my veg patch to hide the compost bin at the end. It's a North facing trellis. I'd ideally like something to cover it all year so evergreen or at least dense-ish branches. Also as its in the veg bed it would be good if it was something edible. Don't think fruit would ripen because north facing. I'm completely out of ideas. Anyone any thoughts? Thanks.