Hi Phyl - short for Phyllis I'm guessing??? For starters I would recommend widening your border by at least 3 feet if you can with the driveway there. A little runway strip is never a good look for a garden and the plants get so stressed.

Secondly, what type of maple is close by? Is it a Norway or a Silver maple. In both cases you are going to have fierce competition for both sun and water. You might want to consider low water need plants. Is the tree across the drive or on the same side? I know I am asking so many questions but you really need to assess your site before you start picking out plants. You also need to address your soil conditions. Is it wet, dry, what is the pH?

With sun only until noon you really should rule out full sun plants. Some may do OK but may flop over or not produce many blooms. You have chosen some good possiblities with heuchera and dicentra, perhaps lobelia with plenty of moisture. They will tolerate shade. Foxglove may be OK if given enough moisture. Everything else is pretty much a full sun plant, especially in your northern location. Down here in the mid-south we have to locate some full sun plants in half-shade to protect them.

Do some more homework before you purchase plants, you will not be disappointed that way. Good luck!

Thanks, Linrose....I finalized my plan this afternoon, and I'm sure I ordered some good ones thru Bluestone. I am so excited! I re-measured the length of the border and it was only 16 feet long. I couldn't enlarge it any. The roses would have done much better if they had had a few more hours of direct sun than they did. We will be relocating them to the backyard where our other 30 plus roses are (full sun).

I ordered 3 Lady's Mantles, and 2 each of the following:
Weigela My Monet
Dicentra Midnight Rose
Dicentra Burning Hearts

They are all listed as doing fine with some sun and shade as well.
:0) Phyl