I don't grow veggies anymore, but I'm still fascinated by the subject. I especially enjoyed this episode from A Growing Passion website: Beans, the Magical Legume.

It describes the mouth watering flavors of heirloom beans and how plant breeders are attempting to preserve the flavor of now rare varieties, but make them more productive. I am reminded of a wonderful tasting big speckled lima bean that used to be available in grocery stores but I've not seen them for sale for years, not even on the internet.

There are a lot of great videos on the PBS A Growing Passion website and you can subscribe to their newsletter.