- August Vegetables These you will find in surplus this month and going into September, you should be able to find great specials so take advantage of using them in preparations in your meals and lunches. They all have plenty of vitamins and nutrients to help build immune systems. This is the time of year for canning and freezing and making freezer jams, better than the ones you buy so full of corn syrup and sugar. Easy to make and keeps for up to a year. Vegetables can be frozen by blanching and storing in freezer containers.