Hi Dan,
I grant you that saving seeds is a short term solutions but I was more concerned about how you actually save seeds from your own plants. How do you harvest them?
Take my onions. I like big round onions and get through quite a lot in a year. I use them in stews, curries, pasta, gravy ( I make a good onion gravy) etc.
But I buy sets to plant and grow. I have never harvested seeds. What will I do when there are no sets to buy?
I also figured that if I have 30 onions and keep two that I allow to run to seed I must get more than thirty seeds I can plant and have ready for next year but, what are the mechanics of seed harvesting , how do I know they are ready? Then there are other plants that produce seeds. Pod veges (peas beans, etc) it is pretty clear. But other plants its no so clear.
Hence my question. Also I am a great believer in not wasting money so if I can buy on onion then keep on reproducing ad infinitem that is money well spent.