Do you have equipment to work the ground. You need either spray all the vegetation (ferns) and once dead disc the ground to create a nice seed bed. Another option is to just mow it down very short and then work the soil real good.
A good fall blend would be a mix of wheat, rye, oats, winter peas, and brassicas.
Check with some local co-ops/farm seed stores--they may already have a local pre-mix that will work good in your area.