This year I didn't plant any annuals so I don't have much color in my early fall garden. Agastache Blue Fortune has been blooming since July and continues tirelessly. Perovskia Russian Sage has also been a blooming machine since July--a chaotic, airy masses of silver stems and pale lavender flowers. I think this is a great accent plant behind denser foliage and blooms. In the photo below, the Russian Sage isn't very well placed in a narrow section of the border. Next year I plan to move it beside my helenium. Hopefully this should be a good combo both blooming at the same time. By adding annuals, daylilies and coreopsis or gallardia in the front it should give me a long period of bloom.
This is the third season for my helenium. I like it better every year. Of course you can't see it in this photo, but when I took the picture it was litteraly dancing in the wind. Almost like butterflies with golden wings, swaying and bobbing with each gust. It was a joy just to stand and watch it.