Mike, if you are saying what I think you are, it is something that has occurred to me too. In our garden, we kick off with the vibrant yellows and reds of tulips and daffs and the crocus, contrasted with purple crocus and aubretia. The aubretia then leads us into a blue and red phase with the delphiniums and oriental poppies, but then we move towards purple pink and white - clematis, pinks, allium, honeysuckle, roses, etc. And finally, a burst of yellow and orange in the autumn with rudbekia, crocosmia, coreopsis, orange dahlias. I think some of these flowered late last year for us. At the end of the year, the cosmos is usually big, and pink, and doesn't work so well with the yellows and oranges, so I am trying the T & M Brightness mix, which will avoid that yellow/pink combo that is not so great.