Today I'm fall planting all my hardy annuals. Flowers that are winter hardy in your zone can be fall planted 68 weeks before the first frost.

Cool Flowers Book https://amzn.to/48n2VL3

Cool Flowers Playlist    • Cool Flowers  

List of Cool Flowers
Corn Cockle
Ammi Majus
Lisianthus
Green Mist
Godetia
Dara
Snapdragon
Bells of Ireland
Bupleurum
Bachelors Buttons
Nigella
Feverfew
Larkspur
Bellflower
Foxglove
Delphinium
Iceland Poppy
Pansy
Dropmore
Throatwort
Orlaya
Pincushion Flower
Sweet William
Rudbekia
Yarrow (Sorry I forgot to cover this. I plant it in very early spring)
Lambada
Calendula
Strawflower

Cool Flowers Lisa has added to the list Carnations, Stock, Statice, Golden Drumstick, Atriplex. I have grown all these in the past. I do not grow them anymore. Some due to pest issues (stock and atriplex), but mainly because I found them less valuable than others.