It has been definitely shown by experience and experiment that is does not matter much where the seed comes from, providing it is well grown and good of its kind. There is no such advantage in changing seed from one locality to another as is commonly supposed. Besides, it is now very difficult to tell positively where seed is grown, because California wholesale seeds are retailed in all the States you mention, and the contents of many small packets of seeds distributed in California went first of all from California to the Eastern retailers, who advertise and sell them everywhere.