Beets - plant them 8 to 10 weeks before the first frost. They will have stronger colors than spring time and stronger sugar levels.
Brussel Sprouts- Plant mid to late summer for a harvest in the fall. Plant seeds ½ inch deep.
Cauliflower-Space the transplants 18 to 24 inches apart with 30 inches between rows. Use starter fertilizer when transplanting.
Pumpkins- Pumpkins take 90 to 120 days to grow after planting the seeds so plan accordingly.
Radishes- You can plant radishes later than any other root crop in late summer or early fall and still get a harvest.
Green Onions - Green onions prefer full sun and since they are mainly grown for the tops, you can plant them in the fall or early winter.
Collards- Frost actually improves the flavor of collard greens.
Lettuce- August is the time to sow seeds directly into the garden or pots for a fall leaf lettuce crop
Broccoli- For fall plantings, seed 85 to 100 days before your average first fall frost.
Green Beans- Plant green beans in the fall, about 10 to 12 weeks before the first expected frost.