Ikenobo is the oldest school of ikebana and traces its origins to the first ikebana master Ikenobo Senko. Ikenobo maintains ties to tradition while striving to express the spirit of the time. The Los Angeles chapter of Ikenobo Ikebana Society celebrated their 50th anniversary in 2007.
Ohara ikebana finds inspiration in the mountains and fields to create an ikebana style that conveys the beauty of natural scenery. The founder of the Ohara style was Unshin Ohara (1861-1916), who is credited with developing the moribana style, where plant material is arranged in low, flat containers with a wide surface of water. The Los Angeles Chapter of the Ohara School of Ikebana was established in 1968.
In 1927, avant-garde artist Sofu Teshigahara (1900-1979) founded Sogetsu School of Ikebana. He strove to push the boundaries of ikebana as a form of contemporary expression while maintaining respect for its traditions. He was known for his innovative collaboration with artists such as Isamu Noguchi.