Lammas (or Lughnasadh) occurs in late July and early August. It marks the beginning of the harvest. It's the first of three harvest festivals and is usually associated with ripening grain. It heralds the coming of Autumn. The Goddess manifests as Demeter, Ceres, Corn Mother, and other agricultural Goddesses. The God manifests as Lugh, John Barleycorn, and vegetation Gods.