These things all depend on your area. I'm in a warm climate and I garden year round. Winter is the easiest time for gardening here, summer is what kills most of my plants off. I'm limited to mostly sweet potatoes, squash, and eggplant in the hottest months. Even my peppers struggle and sometimes die off in my summers. I'm putting my brussels sprouts and cabbages out this week and will be harvesting them through the winter. I'm also planting all my peas which will feed us through winter. My peppers are still going, I'll be cutting them back probably in january and they are perineal for us so they come back on their own every march. I plant all my carrots and lettuces and herbs in greenstalks. If you are in a cold climate you would have to plant with strategies I'm unfamiliar with.