Today is the spring equinox, when the length of the day and the night are almost equal. Radio 4 is marking the seasonal shift with a day of poems.

Listen to actress Noma Dumezweni - who plays Hermione Granger in the West End version of Harry Potter and the Cursed Child - read one of the best-known poems in the English language; William Wordsworth's I wandered lonely as a cloud, commonly known as Daffodils.