The park is about 49.2 hectares wide, and has about 2,600 trees of 50 different varieties, mainly Somei-yoshino. The records indicate that 25 cherry trees were planted in "Nishi-no-Kuruwa" in 1715, and among these trees, Kanzan and Kasumi-zakura still bloom now in the spring. The 120 year-old Somei-yoshino is also very popular, and is said to be the oldest in Japan, planted at the beginning of the Meiji Era.