john mclaren, superintendent of golden gate park was enlisted as , chief of landscape early in the planning process. he worked closely with the architects to achieve stunning landscape effects. two years prior to the exposition, he built six greenhouses in the presidio and cultivated the plants that would adorn the grounds. more than one million bulbs were planted. the flowers in the part tears -- parterres were changed three times over the course of the exposition so they were always in bloom and coordinated with the color scheme. this is two postcards of the same view of the tower of jewels showing entirely different types of plantings. another notable feature of the grounds was the immense hedge fence that ran for four city blocks from the fillmore street gate to the scott street main entrance seen here. it was grown in boxes and then affixed to a vertical framework. the hedge was eight feet thick and 20 feet high. it rose in 36-foot arches of the main entrance of the fair. this beautiful color picture is from donna huggins. walter darcy ryan was appointed chief of illumination. his spec