Hi Target,
Did you ever get any help with this?* Most of the plants you mention are full sun plants needing 6 hours or more of sun.* You also don't say how close to the hedge you plant and if you amend the soil.* How about watering as most roots of hedges can soak up the water.* Do you know what the hedge plants are?* If you still need help:
Where do you live and what is your hardiness zone?* I wouldn't recommend the same plants for Hawaii as I would for Montana.* If you aren't sure of your hardiness zone you can use this zip code zone finder if you are in the US.
http://www.gardenweb.com/zones/zip.cgi
How deep is the bed where you want to plant or can you make it any depth?
What are the sun conditions?*
**** Full sun - 6 hours or more
**** Part sun - 4 to 6 hours
**** Part shade - 2 to 4 hours
**** Shade - 2 hours or less of sun.
Newt