Jo Ann, those are beautiful combos! I don't know why I never think to use photos to plan! I guess I'm just in denial and think it will all work out. Besides, clashes rarely bother me, I just love the blooms no matter what!
So you ordered the Rose Lime? I can hardly wait to see how it turns out!
Will you use the zinnias to shade the heuchera? The nice thing about zinnias is they do great even waiting for direct sowing. I usually direct sow, just that I do rows, 3 1/2' X 50' with about 5 across if I remember correctly. I have found I have to put stakes around the perimeter and twine because they spread out with me cutting on a regular basis. They still flop though. Most of what I grow are the Benary Giants because they are for cutting. I throw in a few of the Mexican/Persian ones but they are tiny and a pain to use for cut flowers! But they sure are pretty.