Ok, so I have been throwing out questions here and there, but this is kind of a lot of those questions put together. I am trying to design a border that will be about 12 feet wide and 4 - 6 feet deep (curved) that gets full sun (except for the very West side which receives a bit of afternoon shade from a fence there and a bit of dappled shade from a young dogwood that is farther southwest around the curve of the border. I live in Portland OR in zone 8. I went a little crazy at Swan Island's Dahlia festival in August, and I ordered 11 dahlia plants, which are arriving mid - april. I am a first time gardener who wants to do it herself, and I am trying to design my yard and not hire a landscaper. I can't draw at all, so I made this shabby little photoshop thing to try and plan out where the heck I am going to put those Dahlias, and what I am going to put with them. Nothing is set in stone except the compost bin/path, and the dahlias have to be there, but in whatever order. The bed is currently set up with the tallest plants (4') in the back, with the very shortest (the heuchera and marigolds) in the front (8" - 1'). Middle is about 2 - 3 1/2'. I would love suggestions or comments, and I can answer any questions if something is not clear. I have never grown any of these plants before, so any helpful hints on them would be grand as well. It may not be obvious what all the plants are, since some of them I could not get a good picture so took whatever close up I could find and then made it about the shape of the plant. If anyone would like, I can put up a list of the plants? Thank you!