Haf, thanks for posting on Clue 3. It does take a lot of time to make a suggestion and then follow up on it. I like the fact that you offered a solution and backed it up with your efforts, even if it didn't bring anything at this point, you never know when it may spark someone else's idea to yield a solution.
A couple other thoughts...what if you also numbered the colors 1-5 as suggested before. This would change the order of the grid, and/or try using the number of the leaves/petals as well.
Lots of work left on this one...good luck.. benz
Dreams really do come true!