Early-flowering species recorded by the Kew team include the wild daffodil, the yellow crocus, the spring starflower, the purple plum tree and the Cornelian cherry tree. Nigel Hepper of Kew said: "Three seasons of flowers are appearing at the same time: spring flowers earlier than normal, the hangover of last summer's flowers, which would normally have frosted and died, and winter flowers like witch hazel and winter jasmine."