Kashiwa Mochi・かしわ餅 are often eaten during Children’s Day・子どもの日 which is usually around the first week of May during Golden Week holidays. It is a simple mochi with red bean paste inside wrapped in a decorative oak leaf. よもぎ・mugwort is another popular flavour for kashiwa mochi which has a fresh grassy taste. I opted for the simple kind.
I usually keep these flowers at my bedside and they are the most beautiful thing to wake up to, despite not knowing their name in neither English or Japanese.