Why do Japanese cherry blossoms bloom later in Honshu than in Kyushu?

Because of its geographical location, cherry blossoms also need temperature and light. Cherry blossoms usually bloom in spring, so the sun shines on the equator at that time, while Kyushu is in the lowest position and is exposed to certain light and temperature. And Honshu is in the middle, and it will take some time before the direct sunlight, so Kyushu blooms before Honshu. If the landlord still doesn't understand, please ask questions. I hope the landlord will adopt it ~