And is all that cheaper than the supermarket ????
Yes.
The biggest expense I have is seeds & the bulk of those are bought for produce which will be sold at the farmers market so they go down as a business expense & don't really count. My own plants & seeds are paid for out of what I make on plant sales & as I only sell tobacco & strawberry plants both of which are grown from saved seeds in compost I have made & planted in pots which cost less than a penny each in effect they cost me nothing to produce. Even if I wasn't selling plants the costs of my own produce would be minimal. I only started selling tobacco plants because it seemed wasteful discarding millions of seed each year & the strawberries followed because there was a demand for them most of the money those plants generate is spent on clothes, make-up & whatever else my wife decides she needs I don't get to see much of it & don't need it for the small amount I spend on plants, seeds, tools etc...
It is not the cost that interests me though I prefer to grow more interesting varieties of fruit & veg that actually have some flavour unlike most of the stuff you find in the supermarket. I also use a large area to grow hops, grapes, cider apples, perry pears & 6 varieties of elderberries for homebrew and another large area for my tobacco.
Fruit & veg cost me next to nothing to produce. Tobacco costs me £0.02 per ounce as opposed to £5+ an ounce in the shops. Alcohol is obviously the most expensive thing to produce as there are things which I have to buy in (sugar, yeast, steriliser etc...) & depending on what I make it may be cheaper to buy certain drinks but again with alcoholic drinks I am more interested in quality rather than cost.
Before you ask "what about the time spent growing things?" I can't put a price on my time because I enjoy doing it. Yes I could pack it all in & work 9-5 doing a job I don't like & buy a load of flavourless food from a supermarket but personally I would rather spend my time doing something I enjoy & produce food that is worth eating in the process.