Hi pippi. Sorry I cannot help you. I am not into winter sowing. Perhaps you would get more response if you posted on the winter sowing thread you would get some help. Steve S.

I've pulled out my seed spreadsheet (seeds that I personally have, so it's not comprehensive). Here are the ones that can be sown in the fall:

WILL BLOOM THE FOLLOWING SPRING/SUMMER:
Centaurea - bachelors' buttons
Consolida - larkspur
Cosmos
Cynoglossum amibile - Chinese forget-me-not
Gypsophilia - baby's breath (mine self-sows, so it should be okay to sow in the fall)
Malva - mallow
Morning glory
Nigella - love in a mist
Papaver - poppy
Nasturtium
Portulaca - moss rose (another that self-sows, so should be okay to fall-sow)
Ruta graveolens - rue (the herb)

WILL NOT BLOOM THE FOLLOWING SPRING/SUMMER--WILL BLOOM THE ONE AFTER THAT:
Alcea rosea - hollyhocks
Aquilegia - columbine
Chrysanthemum maximum- shasta daisies
Cranesbill geranium
Dianthus barbatus - sweet william
Digitalis - foxglove
Lupines
Myosotis sylvatica - forget-me-not

NOT SURE IF IT WILL BLOOM THE FOLLOWING SPRING/SUMMER--MAY BLOOM, OR MAY WAIT TILL THE YEAR AFTER:
Chelone - turtlehead
Chrysopsis mariana - asters
Delphinium
Dicentra - bleeding heart
Euphorbia - cypress spurge
Geum - geum/avens
Rudbeckia - black-eyed susan/gloriosa daisy
Stachys byzantina - lamb's ears
Verbena

Hope this helps!

DL

Sweet peas and poppies can be sown in the fall in the mid-Atlantic.