The mild climate of the Seto Inland Sea, with its long hours of sunshine, was ideal for citrus cultivation, and citrus cultivation flourished on the entire slopes where sea breezes blow and sunlight pours down. Citrus varieties grown in Onomichi include lemons, satsuma mandarin, hassaku orange, Chinese citron, navels, anseikan, sumo mandarin, and Kiyomi orange. Lemon trees are planted on a sunny slope in “Lemon Valley” in Setoda-cho, Onomichi City, and their flowers bloom in early summer and the yellow lemon fruits ripen in winter and spring.