A favorite of mine, not because of its bloom but for its odor. Yes it is called Fetid Marigold, but ALL marigolds are called “fetid.” This has a refreshing, cleansing, invigorating smell. Not unlike the affects of pine scent. At times in late September at North Sterling State Park one can step out of the car and be pleasantly overwhelmed. 
Even in decline it still produces fragrance. 