|Buddleia 'Blue Chip' and Gomphrena 'Fireworks'|
|Hibiscus syriacus 'Diana'|
Remember, fall bloomers can get very tall and leggy growing foliage all summer. Once they bloom, they are often top heavy and fall over. To ensure your fall display is as glorious has it should be, you will either need to stake your fall bloomers earlier in the season or do some periodic pruning to make the plants stockier and more self-supporting. Keep in mind that if you prune your plants, you will be delaying the bloom period by a week or more.
Two books I highly recommend for seasonal gardening:
Time-Tested Plants by Pamela J. Harper and
Continuous Bloom by Pam Duthie.
Colorful Fall Gardening, Part 1
Colorful Fall Gardening, Part 3
Colorful Fall Gardening, Part 4