Such seizure and sale shall be made by the Commissioner of Agriculture or under the direction of an officer of his appointment. The sale shall be made at the courthouse door in the county in which the seizure is made; provided, that whenever for sufficient reason appearing to the Commissioner or his representative another place of sale is more convenient and more desirable, such place of sale may be selected. The sale shall be advertised for thirty days in a newspaper published in the county in which seizure is made or, if no newspaper be published in such county, then it shall be advertised in a newspaper published in the nearest county thereto having a newspaper. The advertisement shall state the name and the variety of the seed, the quantity, why seized and offered for sale and the time and place of sale.