A spoon blank is a piece of fresh wood in which the design has already been chopped out with an axe. The further finishing with the knife and spoon knife is up to you.
To preserve the properties of the green wood for a longer time, you can store it in the freezer or in water until you start working on it, which keeps the wood fresh.
Feel free to mention in the comments if you have a specific preference for the type of wood or the design.