Iunepeace - taro - yes, absolutely to eat! Delish! You can see some pix and tips here
https://picasaweb.google.com/114685571384513740781 Soon I will put up more on the dirt mixing, going from small pots to large in several steps, etc. Almost any method will work. The dirt I start with changes depending on where my construction contacts are digging foundations, but generally good to medium top soil or just below. Since I add good nutrients I lean more toward good "structure" and weed-free than rich.