I am expanding my garden this year and I'm unsure about one thing (or at least one thing today...). I acquired a trellis off freecycle that is three old metal bed frames bolted together (the kind with metal slates, not just the outside frame). So it looks like a giant trellis table with a garden bed on two sides.

Right now it is oriented roughly east-west, with beds on the eastern and western sides. I'm thinking that both sides will get full sun until both sides get high enough to shade the other side. But then the plants should reach the top of the trellis so that part of the plant will get full sun. Does this make sense? Do you agree? (I think I'm planting small melons on both sides - vines are long, melons small)

Second question, I was thinking about planting shorter sunflowers along one open side - so not growing on the trellis just along the ground stretching from one garden bed to the other. I was thinking the south side b/c that's the side that looks like it would get the most sun right now but does the sun move that much as we get into summer that the north side would then be the better bet? I can't remember from summers past!

Thanks for any suggestions! I'll try and post a picture tomorrow when its light outside.