I've carved spoons with both dry and green wood. As mentioned above, if you've got a power carver dry wood is great. But if you're carving with only hand tools green wood is the way to go. My trick to limit cracking is to wet it down with mineral oil, especially if I don't finish it right away. (keeps it easier to carve) Never had one crack, only a chip due to poor choice of location in the wood. I do this with bowls too, sometimes they don't finished for a while and the oil keeps them solid.