If you're not on the GGG list and got pinged, it's a one-timer, due to a recent interesting conversation over in that topic about Home Depot. :') Oh, and I pinged our pingmeister for the FR Gardening list.
One thing about grains is that they can be stored almost indefinitely if kept dry, could be traded as a commodity and carried over from one season to the next in case of famine. The tubers not so much. Vast amounts of grain would create a more complex society than rotting potatoes.
