Yellow can be tough for me. I like it as an accent. It's good in early spring gardens for me, but unless it makes a big statement, I find it a challenge to incorporate it well until fall, and then, all of a sudden it adds the wow again. White , too, I find difficult to apply with the right touch. And as for orange, there are very few things I grow that need that touch, but it is great in fall. On pumpkins.