Help me protect my broccoli
 

I need some suggestions for fall frost protection for my beds. I've
got broccoli and peas (direct seeded 6 weeks ago), and cabbage and
carrots (direct seeded 3 weeks ago). All the plants are still pretty
small (broccoli 8", peas ~12", cabbage and carrots minute).

I'd like to get them all to harvest. How far will I have to take these
into the fall?

I've heard about row covers, except these are beds (around 5' x 3')
and the plants are not in rows.

Any suggestions would be much appreciated,
Greg
USDA Zone 5, Toronto