A note from Jose German regarding Fall gardening and winter garden preparation:

My  Gardening Tips – Volume IV by Jose German

Vegetable  gardening in the fall and winter:

Timing  is very important for a successful fall/early winter garden since cold sensitive  crops must be planted in time to mature before cold weather slows and stops growth. Cool season crops need to be planted late enough to avoid the heat but  early enough to withstand the first frosts of the season.

What  to plant:

The following are optimal “windows of time” for planting fall  vegetables:

When  to start:

If you are late, you can still have the opportunity to grow most of the plants  from the above list.  What  to do:  Prepare your soil, add compost and if needed any recommended organic fertilizer.  My recommendation is COMPOST TEA (or MIRACLE COMPOST TEA as some of my customers  are calling my compost tea).

My  suggestions:  Due to lateness of the season now, I recommend planting seedlings for the  following plants: Brussels sprouts, Cabbage. Collard
greens, and Swiss chard.  You still have time, if do it this week, using seeds for Arugula, Beets,  Cilantro, and Lettuce. Garlic can be planted from cloves
and Irish potatoes from  eyes.  If  you are growing vegetables in a raised bed, you can take advantage of your frame  and use some 1” diameter pvc pipe to create two or three arches, depending of  the size of your raised bed, and cover the arches with floating cover fabric to  reduce cold weather damage.
After  your have planted your seedlings (or your planted seeds have germinated about 4”  high), cover the ground around them with a thick layer of
straw or leaves to  protect the roots from frost. If  you are growing your vegetables in the ground, you can create a “cold
frame”  using straw bales to surround your plants and covering the top with a fabric.