Phlox and Balloon Flower

I bought this pinwheel-stripe phlox from Veseys a few years ago. This year it's done particularly well. At the outer edge of the clump, some all pink shoots are growing as part of it is reverting to a solid colour. I don't really mind because the pink perfectly matches the pink in the bicolour flowers. I think the whole phenomenon of reversion is so interesting - I would love to know what is going on at the DNA level.
I bought this balloon flower last year but it didn't have time to bloom last summer. The white is very fresh looking and in sunlight is super white. Balloon flowers are not very spectacular but they can withstand drought(didn't water them all summer) because they have a big fleshy root. However, because of the taproot, they have to be transplanted when young and they don't divided well when they are mature. I like them because they bloom later in the season when some fresh new blossoms are much appreciated. Balloon flower also comes in a purpley-blue and pink. The pink ones I have, though, are a bit disappointing as the pink is very washed out. The white and blue that I've seen are much better.