The department shall serve as the board of registration for landscape architects and shall administer the provisions of this chapter. The department shall appoint a council of five qualified professional landscape architects who shall have the qualifications required in the following section to recommend certification of those eligible to become registered landscape architects. The five members of the council shall be appointed for five years and until their successors have been appointed and qualify; provided, that the initial terms shall be made so that the term of one member shall expire on June thirtieth of each year.