Lemon Grove is a city in San Diego County, California, United States. The population was 25,320 at the 2010 census, up from 24,918 in 2000. The large monument of a lemon pictured here has been its symbol since 1963.HistoryThe area that eventually became Lemon Grove was part of Mission San Diego de Alcalá, one of the Spanish missions in California. After Mexico became independent from Spain, the Californios (residents of Alta California) ranched on various land grants. The area that now includes Lemon Grove was granted to Santiago Argüello, who received more than 59,000 acres.The first proprietor of Lemon Grove, Robert Allison, arrived in the region in 1850, coming from Sacramento. He purchased thousands of acres from Santiago Argüello's heirs; this land eventually became Lemon Grove, La Mesa, Encanto, and part of Spring Valley. Allison became a director and stockholder of the San Diego and Cuyamaca Railroad in 1886, and built the Allison Flume. Allison's son Joseph filed subdivision maps for "Lemon Grove" in 1892. The name is attributed to Joseph's mother, Tempa Waterman Allison. The climate was suitable for the cultivation of subtropical fruits and vegetables, and farmers from the East and Midwest flocked to the region. The Lemon Grove Fruit Growers Association was formed in 1893; in 1894, the San Diego Union newspaper referred to Lemon Grove as "a sea of lemon trees."
